Question

PLS HELP!!!
Let f(x) = -2x - 7 and g(x) = -4x + 6. Find f*g(-5)

Answer 1

@Vocaloid

Answer 2

if that's a multiplication sign between f and g, just multiply f(x) and g(x) together then plug in x = 5 into the result

Answer 3

yes that is a multiplication sign
so, -2(5)-7=-17
-4(5)+6=-14

Answer 4

oh, well yeah you can plug in x = 5 first

after that you just multiply the results (-17) * (-14)

Answer 5

238

Answer 6

good so 238 = your solution

Answer 7

–6


–59


26


3

Answer 8

^^those are the options @Vocaloid

Answer 9

oh duh it says x = -5 not x = 5 :S i misread

Answer 10

so you'd plug in

-2(-5)-7=
-4(-5)+6=

and multiply the results

Answer 11

26*3=78

Answer 12

huh. that's not a choice either. hold on... :S

Answer 13

I believe it's asking for the function composition not the product

so f composed with g, take g(x) and plug it into f(x) to get

f(x) = -2x - 7 ---> f(g(x)) = -2(-4x + 6) -7

then plug in x = -5

Answer 14

-2(-4(-5)+6)-7=-59