Question

If f(x) = −3x − 3 and g(x) = 2x + 1, find f/g(−2).

Answer 1

if we have

g(x) = 2x +1

g(-2) can be found by plugging in -2 into the x-values for the g(x) function.

g(-2) = 2(-2)+1 = ?

Answer 2

−3

3

−1

1

Answer 3

those are the answer choices. i got -1?

Answer 4

what does 2(-2)+1 =?

Answer 5

-3

Answer 6

Good. now we're solving for f/(-3) So

\[\large \frac{f(x)}{-3} = \frac{-3x-3}{-3}\]\[\large \frac{-3x}{-3}-\frac{3}{3}\] can you evaluate this now? :)

Answer 7

x-1?

Answer 8

Good job!

Answer 9

\[\large \frac{f(x)}{g(-2)}= x-1\]

Answer 10

so is the answer -1?

Answer 11

Nope, the answer is what you stated, x-1.

Answer 12

I don't believe you're evaluating the function for x, are you?

If you are,in that case you would solve for x.

x-1 = 0

add 1 to both sides

x -1 +1 = 1 + 0

x = 1