sarahelisabeth444
sarahelisabeth444 sarahelisabeth444
  • 02-01-2019
  • Mathematics
contestada

Im stuck on a algebra 2 question

f(x) = -2x + 8 and g(x) = 3x^2 - 1

find f(f(-2))

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 02-01-2019

Answer:

f(f(-2) = -16

Step-by-step explanation:

The first step is to evaluate the function f at -2

f(-2) = -2(-2) +8

f(-2) = 4+8

        =12

Then we evaluate the function f at x=12

f(12) = -2(12) +8

       = -24 +8

      = -16


f(f(-2) = -16

Answer Link
jimrgrant1 jimrgrant1
  • 02-01-2019

Answer:

f(f(- 2)) = - 16

Step-by-step explanation:

To evaluate f(f(- 2)), evaluate f(- 2) then evaluate f(x) for this value

f(- 2) = (- 2 × - 2) + 8 = 4 + 8 = 12, hence

f(12) = (- 2 × 12 ) + 8 = - 24 + 8 = - 16


Answer Link

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