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contestada

If the function f is given by f(x)=2x^2-4 then whichof the following represents the value of c such that f(c)=28?

(^ Means Exponent)

Select one:
A. 0
B. 2
C. 4
D. 8​

Respuesta :

absor201

The correct answer is: C. 4

Step-by-step explanation:

We will check the value of function on each option.

Given function is:

[tex]f(x)=2x^2-4[/tex]

So,

For A. 0

[tex]f(0)=2(0)^2-4\\=0-4\\=-4[/tex]

For B. 2

[tex]f(2)=2(2)^2-4\\=2(4)-4\\=8-4\\=4[/tex]

For C. 4

[tex]f(4)=2(4)^2-4\\=2(16)-4\\=32-4\\=28[/tex]

The value of function is 28 on x=4

So,

The correct answer is: C. 4

Keywords: Functions, Constants

Learn more about functions at:

  • brainly.com/question/2048256
  • brainly.com/question/2115122

#LearnwithBrainly

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