A circle has equation
x2 +y2 + 4x - 2y - 11 = 0
the coordinates of the points where C crosses the y axis, giving your answers in simplified surds
2 answers
Find the coordinates
these points are where x=0, right?
So just solve
y^2 - 2y - 11 = 0
So just solve
y^2 - 2y - 11 = 0