ilana201188 ilana201188

07-12-2019
Mathematics

contestada

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

A. -9
B. -61
C. -32
D. -17

Respuesta :

jimrgrant1 jimrgrant1

07-12-2019

Answer:

B

Step-by-step explanation:

To evaluate (f ￮ g)(- 4), first evaluate g(- 4) then substitute this value into f(x)

g(- 4) = 3(- 4) - 5 = - 12 - 5 = - 17, then

f(- 17) = 4(- 17) + 7 = - 68 + 7 = - 61 → B

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