Question

Find the vertex of the parabola formed by the following quadratic function: y=x^2-8x+8 a.) (8,8) b.)(-8,136) c.) (4,-8) d.)(-4,56)

Answer 1

Your function has the form ax^2 + bx + c
The x-value of your vertex is given by this formula
-b/2a
to get the y-value, you can substitute the x-value (-b/2a) for the x in your function, or you can use this formula
(4ac - b^2)/4a

Hope this helps :)