Question

Assume f(x) = -2x + 8 and g(x) = 3x. What is the value of (g o f)(3)?

6
x+8
-10
23

Answer 1

what are you trying to say? @SwoleNation_2016

Answer 2

dav21 you have the order in reverse

and SwoleNation_2016 that's irrelevant and inappropriate, megen505 looks just fine, so stop trying to troll or you may be banned

Answer 3

You know, she is on here to get help with a math problem. She isn't ugly, whatsoever. Cyberbulling is terrible.

Answer 4

kbbbb agreed, just too much negativity out there

Answer 5

woooowww your nice

Answer 6

SwoleNation_2016 you've been reported

knock that off right now

Answer 7

i dont even know you?

Answer 8

@megen505 some people just live to be rude and hurt people.

Answer 9

anyways, back to math

(g o f)(x) = g(f(x))

so we need to find g(f(x)) first

-------------------------------------------------------

g(x) = 3x

g(f(x)) = 3( f(x) ) ... replace each x with f(x)

g(f(x)) = 3( -2x + 8 ) ... replace each f(x) on the right side with -2x + 8

g(f(x)) = -6x + 24

Answer 10

so this means that

(g o f)(x) = -6x + 24

now plug in x = 3


(g o f)(x) = -6x + 24

(g o f)(3) = -6*3 + 24

(g o f)(3) = ???

Answer 11

the answer is 6

Answer 12

correct

Answer 13

thank you so much!

Answer 14

you're welcome

Answer 15

f(x) = -2x + 8 and g(x) = 3x. What is g(f(x)) when x = 3?
First solve for f(x) when x = 3. f(3) = (-2)(3) + 8 = 2
g(f(3)) = g(2) = (3)(2) = 6.

Answer 16

thank you so much @ranga

Answer 17

You are welcome. Don't think too much about troll remarks. Enjoy the rest of your day.