Question

If circle P is tangent to both the x-axis and the y-axis and the coordinates of the center are (r,r) what is the slope of the line through the origin and the center?

Answer 1

it's either y=x or y=-x.

Answer 2

m = (r-0)/(r-0) = r/r = 1

Answer 3

y=x if in 1 or 3 quad, y=-x if in 2 or 4

Answer 4

oh yeah, prob has a picture that shows which quadrant
usually its quad 1