Question

Let f(x) = -2x - 7 and g(x) = -4x + 3. Find (f * g)(-5)

Answer 1

A. 23

B. -53

C. 3

D. -9

Answer 2

f(-5) = -2(-5)-7 = 10-7 = 3
g(-5) = -4(-5)+3 = 23
23*3 = 69

Answer 3

none of the answers are right

Answer 4

@zzr0ck3r One of those is right!

Answer 5

ahh \(f\cdot g \ne f*g\)

Answer 6

What is the difference?

Answer 7

well

\((f*g)(x)=f(x)*g(x)\)
and
\((f\cdot g)(x) = f(g(x))\)

Answer 8

we want the latter

Answer 9

\(f(g(-5)) = f(23) = -2*23-7=-53\)

Answer 10

Thanks so much

Answer 11

np

Answer 12

what is f(-7) =?

Answer 13

No idea.. sorry

Answer 14

(x^2+6)(-7) ??

Answer 15

f(x) = -2x-7
put a -7 where you see an x