Question

At what points will the line y=x intersect the unit circle x^2+y^2=1

Answer 1

i dont know what grade are you in

Answer 2

Graph it or solve 2x^2 = 1, x=+-1/Sqrt(2) = +-0.707
and the same for y.
Points are (-.707, -.707) and (.707,.707) or (1/Sqrt(2).....