Question

The graph of the equation y=x²-2x-8 is a parabola. What is the equation of the axis of symmetry?

Answer 1

x=1

Explanation:

y=x²-2x-8

First, we solve for the vertex

The equation for the vertex is -b/2a

Substitution:

-b/2a

=-(-2)/(2*1)

=2/2

=1

Therefore the equation for the line of symmetry is x=1

Hope this helps!