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

Answer Link

Otras preguntas

Who are the federal branches of lawmakers and what are their power concerning law-making?

A box is 2 inches long, 1 inch wide, and 6 inches tall. What is the relationship between the volume of this box and the one in problem 4? Tell how you know.

A line that is perpendicular to 3y = 11 - 8x has slope m=___

Help look at number 2!!

PLEASE HELP WILL MARK BRAINIEST What is the surface area of the square pyramid? A. 1152 in2 B. 1600 in2 C. 2752 in2 D. 3328 in2

Given 6 terms what is the sum of 10+25+40+...+85

if a country has a low GDP, it __________. A. produces a low number of goods each year, resulting in an economically rich nation B. produces a high number o

Help please. :)))))) I’ll mark ya brainliest

Question 1 When a female bird chooses a mate because of his brightly colored feathers, this is an example of a. random mating, which maintains equilibrium in th

which is a valve between the right atrium and the right ventricle of the heart that directs blood that needs oxygen to the lungs.