What is the vertex of the graph of the function f(x) = x² + 8x - 2? (-4,18) (0,-2) (-8, -2) (-4,-18)

MarkusQ asked Dec 4, 2023

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16 votes

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

(-4,18)
(0,-2)
(-8, -2)
(-4,-18)

MarkusQ asked Dec 4, 2023

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22 votes

Answer:

(4, -18)

Explanation:

First Use this formula for the x -axis -b/2a

-8/2(1) is -4

Then plug in -4 to the equation

(-4)^2+8(-4)-2 = -18

Feng Tian answered Dec 9, 2023

3.3k points

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