Question

Given the following functions f(x) and g(x), solve (f + g)(3) and select the correct answer below:

f(x) = 2x + 21

g(x) = x − 24

A)−27
B)−21
C)6
D)48
I THINK ITS D BUT IM NOT SURE HELP ME PLEASE IM RIGHT?

Answer 1

@chrisdbest

Answer 2

@Haseeb96 @horsegirl27

Answer 3

just add these two equations as we add two numbers .
and show me what you get

Answer 4

No, you have to plug in 3 for ALL X Values

Answer 5

So f(x) = 27 & g(x) = -21

Answer 6

So 27 + -21 = Your answer

Answer 7

I HAVE -48

Answer 8

you will get
(f+g)(x) = 2x+21 +x-24
= 3x -3
now put x=3 in order to find (f+g)(3)
(f+g)(3) = 3(3) -3
= 9-3
= 6
is your answer

Answer 9

OH I GET NOW THANK YOU

Answer 10

HEY, CAN I ASK YOU WERE DID YOU GET 9? @Haseeb96 ??

Answer 11

first i put 3 at the place of x
and then multiply 3 with 3

Answer 12

YEA I GET NOW THANKS