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

The vertex is (-4,-18)

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

To get the x value, use the formula

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)

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