Question

Evaluate the function for the given value of x.

f(x) = -6x2 - 4x - 4 , x = - 2

A. f( - 2) = -36

B. f( - 2) = -17

C. f( - 2) = -20

D. f( - 2) = -28

Answer 1

just plug in x=-2

Answer 2

f(x) = -6x2 - 4x - 4
f(-2) = -6(-2)^2 - 4(-2) - 4

Answer 3

Now simplify

Answer 4

\[f(-2) = -6(-2)^2 - 4(-2) - 4\]

Answer 5

If you have f(x), then saying x = -2 means the same thing as f(-2).
\[f(x) = -6x^{2} - 4x - 4\]\[f(-2) = -6(-2)^{2} - 4(-2) - 4\]

Answer 6

I'll simplify it a little bit more. Try to solve it after this.
\[f(-2) = -6(-2)^{2} - 4(-2) - 4\]\[f(-2) = -6(4) + 8 - 4\]\[f(-2) = ?\]

Answer 7

Do you know how to multiply and add?

Answer 8

\[f(-2)=-6*4-8-4\]
[f(-2)=-6*(-2)^2-4*(-2)-4\]
\[f(-2)=-24-12\]\[f(-2)=-36\]

Answer 9

@muhammad9t5 +8 -4= 4 and not -12 :)

Answer 10

Oh sorry I didn't even see this, I got a -36 is this right. Sorry I was getting a lil depressed over something.

Answer 11

@samyflashy its negative 8 not the positive 8.

Answer 12

so then D ? I'm sorry bare with me lol

Answer 13

I'm pretty convinced its A.

Answer 14

C is right answer.