Question

Find the equation of the axis of symmetry of the following parabola algebraically. y=−x ^2 +8x−12

Answer 1

Answer: x=0

Explanation:

Answer 2

Explanation:

y = -x²+8x-12

 = -(x²-8x) - 12

 = -(x²-8x+4²)+4²-12

 = -(x-4)² + 4

vertex (4,-4)

axis of symmetry: x = 4