Question

Find the coordinate of the vertex of the following parabola algebraically!
y=-4x² – 20

Answer 1

The vertex of a parabola is found by

'h' position = -b / (2 * a) = 0 / 2 * -4 = 0

'y' position = ah^2 + bh + c = -4*0 + 0 -20

vertex = (0, -20)

Explanation: