Pre-Calculus

Have pre-calculus questions? Ask a pre-calculus tutor

Connect one-on-one with {0} who will answer your question

Customer Question

For Lenny Mat/116 Reading is found from...

For Lenny

Mat/116

Reading is found from if this helps. Please do not answer in higher math as I will use this to figure these things out later on. If you do not have this book and this chapter, I will research again to find something to back up your answers.Thanks.

Chapter 7 – Graphs, Functions and applications.

Introductory and intermediate algebra, 2007 Pearson education

(1)

In the space below, type a response to the concept check question(s). Your response must be at least 50 words; it must come from the text book but be explained in your own words.

Explain how the slope of two equations can determine if the graphs will be perpendicular, parallel, or intersecting.

__________________________________________________________________

(2) Function Values

Using the given functions, find the function values.

You must show all of your work; do not skip steps.

Provide the three coordinates you would use to create the graph of each function. You must put them in the proper format.

a) F(x) = x+5

F(3)

F(2.4)

F(2/3)

If you were to graph this function, what three points would you plot based on these function values?

__________________________________________________________________________

b) F(x)=2x^2-3x

F(6)

F(-1/2)

F(0)

If you were to graph this function, what three points would you plot based on these function values?

__________________________________________________________________________

c) G(s)=3s+4

G(1)

G(-7)

G(100)

If you were to graph this function, what three points would you plot based on these function values?

_______________________________________________________________________

(3) Multiple choice / true or false

The following questions contain material from the text book and may possibly have been discussed in Week 5. Read the question and provide the correct corresponding letter where indicated. When required, you must also provide the section and page number of the text book where you find the reference. Where applicable, you must have the correct answer and a correct reference

The _____________________________ of an equation is a drawing that represents all of its solutions.

a) relation

b) graph

c) formula

d) points

answer_______________ reference section/pg

__________________________________________________________________________

True or False: On a graph, if no end points are indicated, the domain will be the set of all real numbers.

Answer- reference section / pg

_________________________________________________________________________

True or False: A function written in the form of f(x)=mx+b, when graphed can be any shape.

Answer- reference section/ pg

__________________________________________________________________________

Given the linear equation 4y+8x=12, the y-intercept is:

a) 12

b) 4y

c) 3

d) Cannot be determined

Answer ________ (no reference required)

___________________________________________________________________________

Given the linear equation 10x+3y-9=7-2y+x, the slope is:

a) 9

b) 0

c) undefined

d) -9/5

Answer ___________________ (No reference required)

___________________________________________________________________________

(4) Application

Read the following scenario and apply the concepts from the text book and discussions to answer the questions that follow. You must show your work wherever required using Equation Editor. Make sure to answer the questions entirely for maximum points.

Scenario:

Everyone seems to be keeping their eye on the cost of gas these days. In this real-world application, we will be focusing on a study beginning in the mid 1990’s focusing on the average cost of gas.

The linear equation y=0.15x+0.79

represents an estimate of the average cost of gas for year x starting in 1997 (“Consumer price index,” 2006). The year 1997 would be represented by x = 1, for example, because it is the first year in the study. Similarly, 2005 would be year 9, or x = 9.

a) What year would be represented by the year x=4?

b) What X value represents the year 2018?

c) What is the slope, or rate of change, of this equation?

d) What is the y-intercept of this equation and what does the y-intercept represent (specific to this scenario)?

e) Assuming this growth trend continues, what will the price of gasoline be in the year 2018? You must show all of the work done to arrive at your answer

Mat/116

Reading is found from if this helps. Please do not answer in higher math as I will use this to figure these things out later on. If you do not have this book and this chapter, I will research again to find something to back up your answers.Thanks.

Chapter 7 – Graphs, Functions and applications.

Introductory and intermediate algebra, 2007 Pearson education

(1)

In the space below, type a response to the concept check question(s). Your response must be at least 50 words; it must come from the text book but be explained in your own words.

Explain how the slope of two equations can determine if the graphs will be perpendicular, parallel, or intersecting.

__________________________________________________________________

(2) Function Values

Using the given functions, find the function values.

You must show all of your work; do not skip steps.

Provide the three coordinates you would use to create the graph of each function. You must put them in the proper format.

a) F(x) = x+5

F(3)

F(2.4)

F(2/3)

If you were to graph this function, what three points would you plot based on these function values?

__________________________________________________________________________

b) F(x)=2x^2-3x

F(6)

F(-1/2)

F(0)

If you were to graph this function, what three points would you plot based on these function values?

__________________________________________________________________________

c) G(s)=3s+4

G(1)

G(-7)

G(100)

If you were to graph this function, what three points would you plot based on these function values?

_______________________________________________________________________

(3) Multiple choice / true or false

The following questions contain material from the text book and may possibly have been discussed in Week 5. Read the question and provide the correct corresponding letter where indicated. When required, you must also provide the section and page number of the text book where you find the reference. Where applicable, you must have the correct answer and a correct reference

The _____________________________ of an equation is a drawing that represents all of its solutions.

a) relation

b) graph

c) formula

d) points

answer_______________ reference section/pg

__________________________________________________________________________

True or False: On a graph, if no end points are indicated, the domain will be the set of all real numbers.

Answer- reference section / pg

_________________________________________________________________________

True or False: A function written in the form of f(x)=mx+b, when graphed can be any shape.

Answer- reference section/ pg

__________________________________________________________________________

Given the linear equation 4y+8x=12, the y-intercept is:

a) 12

b) 4y

c) 3

d) Cannot be determined

Answer ________ (no reference required)

___________________________________________________________________________

Given the linear equation 10x+3y-9=7-2y+x, the slope is:

a) 9

b) 0

c) undefined

d) -9/5

Answer ___________________ (No reference required)

___________________________________________________________________________

(4) Application

Read the following scenario and apply the concepts from the text book and discussions to answer the questions that follow. You must show your work wherever required using Equation Editor. Make sure to answer the questions entirely for maximum points.

Scenario:

Everyone seems to be keeping their eye on the cost of gas these days. In this real-world application, we will be focusing on a study beginning in the mid 1990’s focusing on the average cost of gas.

The linear equation y=0.15x+0.79

represents an estimate of the average cost of gas for year x starting in 1997 (“Consumer price index,” 2006). The year 1997 would be represented by x = 1, for example, because it is the first year in the study. Similarly, 2005 would be year 9, or x = 9.

a) What year would be represented by the year x=4?

b) What X value represents the year 2018?

c) What is the slope, or rate of change, of this equation?

d) What is the y-intercept of this equation and what does the y-intercept represent (specific to this scenario)?

e) Assuming this growth trend continues, what will the price of gasoline be in the year 2018? You must show all of the work done to arrive at your answer

Show More

Show Less

Was this answer helpful?

Describe your issueThe assistant will guide you

Chat 1:1 with a tutorLicensed Experts are available 24/7

100% satisfaction guaranteeGet all the answers you need

Related Pre-Calculus Questions

A. Find the slant asymptote of the graph of the rational

a. Find the slant asymptote of the graph of the rational function. b. Follow the seven-step strategy and use the slant asymptote to graph the rational function. f left parenthesis x right parenthesis… read more

I saw you did this about a year ago. Can you help me

I saw you did this about a year ago. Can you help me out...rather quickly? Show All calculation!! 1. Solve the following Expression 5 (B - 4) =10 2. Solve the following equation for the variable L. p … read more

Show All calculation!!1. Solve the following Expression 5

Show All calculation!! 1. Solve the following Expression 5 (B - 4) =10 2. Solve the following equation for the variable L. p = 2L +2w 3. Complete the following table X Y -1 0 4 4. Find the Slope-inter… read more

Question 1 y varies directly as x and inversely as the

Question 1 y varies directly as x and inversely as the square root of w; write the sentence as an equation. Question 2 Write the equation of the line whose slope is -3/7 and y-intercept is -4; write t… read more

I see an answer is already answered to the exact question I

University of Phoenix Material Traffic Modeling Figure 1 shows the intersections of five one-way streets and the number of cars that enter each intersection from both directions. For example, I1 shows… read more

Precalculus Problems. (big bonus for great solutions) 1. Solve

Precalculus Problems. (big bonus for great solutions) 1. Solve the following equation for x: log2(x + 7) + log2(x + 8) = 1 Note: Be sure to plug any solutions back into the original equation; if they … read more

Show your work on the problems.1. Determine whether the

Show your work on the problems. 1. Determine whether the equation defines a function with independent variable x. If it does, find the domain. If it does not, find a value of x to which there correspo… read more

(Slope and the Equation of a Line) 1. Graph the line with

(Slope and the Equation of a Line) 1. Graph the line with a slope 3/2 that passes through the point (-1,-1). 2.Write the slope-intercept form equation of the line with slope -6 that passes through the… read more

Directions: Solve the problems below. Make sure to show your

Directions: Solve the problems below. Make sure to show your work when applicable. 1. Simplify the expression. + (32 – 42) 2. Simplify the expression. √625 3. Evaluate the expression for a = –1 and b … read more

For the function below find the vertex axis of symmetry maximum

For the function below find the vertex axis of symmetry maximum or minimum value and graph the function ￼ the vertex is _______ (ordered pair) The axis of symmetry is x=______ Does it have a maximum o… read more

I need help with the following problems, I have done many of

I need help with the following problems, I have done many of these over and over, I just do not know the formulas. I was hoping that I can get an answer, and the steps to solve each of the following q… read more

#1 Housing Prices The average home price in Linden Hills,

#1 Housing Prices The average home price in Linden Hills, Minneapolis in 2007 was $381,000. The average home price in Linden Hills, Minneapolis in 2011 was $296,000 Source: http://www.zillow.com/local… read more

consider the function f(x)=2x3+7x2-8x-21 a) find f(-3/2).

consider the function f(x)=2x3+7x2-8x-21 a) find f(-3/2). use the result to show that (2x+3) must be a factor of f(x) b)use long division to find the other (quadratic) factor of f(x) c) find all three… read more

1. The scatter plot below shows the relationship between the

1. The scatter plot below shows the relationship between the day of a particular month a stock was valued and the price of the stock in dollars. The horizontal axis represents the day of the month. Us… read more

Answer the following for the given quadratic function. f(x)=x^2-16x+64 What

Answer the following for the given quadratic function. f(x)=x^2-16x+64 What is the vertex (h,k) of f? Could you write down how you got the answer step by step, thanks… read more

For Neomat/1161 Essay: Concept CheckIn the space below,

For Neo mat/116 1 Essay: Concept Check In the space below, type a response to the concept check question(s). Your response must be at least 50 words; it must come from the text book but be explained i… read more

Question 1 of 20 5.0 Points Plot the point (–4, 3) in a

Question 1 of 20 5.0 Points Plot the point (–4, 3) in a rectangular coordinate system. A. 24 B. 25 C. 26 D. 27 Reset Selection Mark for Review What's This? Question 2 of 20 5.0 Points Graph the line 3… read more

I need help with 26 questions on my Final Exam for my Math

I need help with 26 questions on my Final Exam for my Math 116 class? I need to score extremely well on this exam, can anyone help? I need these answers by tomorrow before 5:00 p.m. Pacific Standard T… read more

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.

JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.

Web sites like justanswer.com/legal

...leave nothing to chance.

...leave nothing to chance.

Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.

Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

Los Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

Hesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

Kernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

Woodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

Elkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

Dallas, TX

< Previous | Next >

rajeevanpillai

Master's Degree

531 satisfied customers

B.Sc in Mathematics and M.Sc, M Phil in Statistics

Mr. Gregory White

Master's Degree

167 satisfied customers

M.A., M.S. Education / Educational Administration

mhasan420

Master's Degree

37 satisfied customers

BA Maths, Oxford

JACUSTOMER-yrynbdjl-

Master's Degree

185 satisfied customers

I have taught college Mathematics for the past 10 years.

Dr. Arthur Rubin

Doctoral Degree

12 satisfied customers

Ph.D. in Mathematics, 1978, from the California Institute of Technology, over 20 published papers

Sandhya_sharma

Master's Degree

1,258 satisfied customers

I hold M.Sc and M.Phil degrees in math and have several years of teaching experience.

Kofi

PhD in Statistics

893 satisfied customers

Masters in Mathematics and Statistics

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.