Question

f(x) = 7x g(x) = 3x + 10.
1) Find f(g(x)).
2) Find (g ο f)(x).

Answer 1

okay this isn't hard

Answer 2

so plug g int the x of f

Answer 3

so f(3x+10)=7(3x+10)?

Answer 4

yup now distribute

Answer 5

how do you distribute on the left side of the equation?

Answer 6

the right side is 21x+70?

Answer 7

21x+70

Answer 8

what right side

Answer 9

7(3x+10)

Answer 10

what left side i mean

Answer 11

the left side of the equation

Answer 12

f(3x+10)

Answer 13

do you have to distribute that?

Answer 14

there is only 21x=70

Answer 15

now divide by 21

Answer 16

3.3?

Answer 17

the three is repeating

Answer 18

yup is that an asnwer choice

Answer 19

theres no answer choices :/

Answer 20

o kk lets solve the second part of the question

Answer 21

okay! So I do the same thing?

Answer 22

opposite put the 7 into the g

Answer 23

i dont understand

Answer 24

XD

Answer 25

put the f inside the x's of the g's

Answer 26

(7x)(7x)?

Answer 27

no 3(7x)=10

Answer 28

could you explian?

Answer 29

*explain

Answer 30

o sry u just multiply wasnt looking at the question correctly

Answer 31

so (7x)(3x+10)?

Answer 32

yup

Answer 33

do you have to foil it?

Answer 34

21x^2+70

Answer 35

*70x

Answer 36

Oh awesome, thank you!

Answer 37

np