Question

What is the vertex of the graph of the function f(x) = x2 + 8x − 2 ?

Answer 1

D.

Explanation:

Answer 2

The vertex is (-4,-18)

Step-by-step explanation: Given in ax² + bx + c form

To get the x value, use the formula
`x=(-b)/(2a)`

a is 1 (implied) b is 8 x= -8/2 so x is -4

Plug in to the equation ans solve for y. "f(x)" means"y output"

y = (-4)² + 8(-4) - 2

y = 16 -16 -2

y = -18

so the coordinates of the vertex: (-4, -18)