Question

i need the first step on how to do these


http://prntscr.com/28czjn

Answer 1

It is the principle of substitution

If r(x) = 12x - 5
Then
r(2) = 12(2) - 5
r(Fred) = 12(Fred) - 5
r(HardLandingInTheCongo) = 12(HardLandingInTheCongo) - 5
r(WW) = 12(WW) - 5
r(3/2) = 12(3/2) - 5

Answer 2

so the first one would be f(7)=−4(7)−3

Answer 3

yes, and you have to simply it.

Answer 4

Did you get it?

Answer 5

no idk

Answer 6

f(7)= -4(7)-3
f(7)= -28-3= -31

So, the function of f(7) is -31 or f(7) = -31.

You will do the same in that g(x) function.

Answer 7

try

Answer 8

ok

Answer 9

simplify g(-4)=3(-4)^2-3x

Answer 10

likd that?

Answer 11

No, you have to get them ALL.

g(-4)=3(-4)^2-3(-4)

Simplify.

Answer 12

You can simply since there is nothing more to do...