Pre-Calculus

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1. Decide whether or not the ordered pair is a solution of the system

a. (4,-5)

3x=-17-y

2x=-23-3y

b. (6,1)

x+y= -5

x-y= -7

c. (-3,3)

x+y=0

x-y=-6

2. Solve the system by graphing

x+y=1

x-y=3

3. Solve by the substitution method.

x+3y=5

-5x+2y=43

4.Solve using the elimination method

x+y=2

x-y=16

5. Solve the system by graphing

3x+y=13

9x+3y=39

6. Find the coordinate of the vertex

y=4x^2-16x+15

7. Graph the equation.

a) Find the coordinate of the vertex

b) Find the x intercept

c)Find the y intercept

d) Find the minimum point

1. Decide whether or not the ordered pair is a solution of the system

a. (4,-5)

3x=-17-y

2x=-23-3y

b. (6,1)

x+y= -5

x-y= -7

c. (-3,3)

x+y=0

x-y=-6

2. Solve the system by graphing

x+y=1

x-y=3

3. Solve by the substitution method.

x+3y=5

-5x+2y=43

4.Solve using the elimination method

x+y=2

x-y=16

5. Solve the system by graphing

3x+y=13

9x+3y=39

6. Find the coordinate of the vertex

y=4x^2-16x+15

7. Graph the equation.

a) Find the coordinate of the vertex

b) Find the x intercept

c)Find the y intercept

d) Find the minimum point

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