Question

what is the x-coordinate of the vertex of this parabola? y=x^2-8x+16

Answer 1

To find the x coordinate you must set y to be 0 and solve for x

Answer 2

four.

Answer 3

but i suggest that you factor this polynomial first

Answer 4

When you factor you should get : (x-4)(x-4)

Answer 5

Now, simply set each factor to equal zero and solve for x