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The graph of the relation...

The graph of the relation x^2 + y^2 - 2x - 2y + 2 = 0 is a (an)

a. point

b. straight line

c. pair of intersecting straight lines

d. circle

e. ellipse

f. hyperbola

g. parabola

h. none of these

a. point

b. straight line

c. pair of intersecting straight lines

d. circle

e. ellipse

f. hyperbola

g. parabola

h. none of these

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