Question

f(x)=4x+7 and g(x)=3x-5. find (g o f)(-4)

Answer 1

3(4x+7)-5
12x+21-5
12(-4)+21-5
-32?

Answer 2

that would be a suitable process yes; or just find f(-4) and use that value in g(x)

Answer 3

-32 correct! :)

Answer 4

thanks

Answer 5

try the alternate way shown by amistre to verify your answer

Answer 6

find f(-4) = 4(-4)+7 = ... ?

Answer 7

-9

Answer 8

4(-4)+7+-9

Answer 9

g(-9)=3(-9)-5=-32 :)

Answer 10

-9 is correct, good , both of you
now find g(-9) = 3(-9)-5 =... ?

Answer 11

3(-9)-5=-32

Answer 12

yup, in both ways, u get -32 which is correct :)