Question

Let f(x) = -4x + 7 and g(x) = 10x - 6. Find f(g(x)).

Answer 1

Start with f(x) = -4x + 7

Answer 2

Replace EVERY x with g(x)

f(x) = -4x + 7

f(g(x)) = -4( g(x) ) + 7

Answer 3

then on the right side, replace g(x) with 10x-6

f(g(x)) = -4( g(x) ) + 7

f(g(x)) = -4( 10x - 6 ) + 7

I'll let you finish up

Answer 4

-40x+27+7
-40x+34

Answer 5

-4 times -6 is NOT 27

Answer 6

24 sorry

Answer 7

so the final answer is?

Answer 8

-40x + 24

Answer 9

f(g(x)) = -4( 10x - 6 ) + 7

f(g(x)) = -4( 10x ) - 4(-6 ) + 7

f(g(x)) = -40x + 24 + 7

f(g(x)) = -40x + 31

Answer 10

You forgot the +7 at the end

Answer 11

Let f(x) = -4x + 7 and g(x) = 10x - 6. Find f(g(x)).

f(g(x))=-4(10x - 6) + 7 <--- simplify

Answer 12

Goodness Dan I got already..

Answer 13

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