hicksonrhonda hicksonrhonda

03-05-2020
Mathematics

contestada

Which of the following is an x-intercept of the function, f(x) = x^2 - 64 ?
ОА. – 64
Ов. -16
Ос. -32
OD. -8

Respuesta :

mathstudent55 mathstudent55

03-05-2020

Answer:

D. -8

Step-by-step explanation:

An x intercept is where the y value is zero.

We set the expression equal to zero and solve for x.

x^2 - 64 = 0

(x + 8)(x - 8) = 0

x + 8 = 0 or x - 8 = 0

x = 8 or x = 8

Answer: D. -8

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