nnataliaortizz nnataliaortizz

22-08-2019
Mathematics

contestada

give the function f(x) =2x^2+4x-7 find f(-4)?
A -55
B -7
C 9
D 25

Respuesta :

jimrgrant1 jimrgrant1

22-08-2019

Answer:

C

Step-by-step explanation:

To evaluate f??(- 4) substitute x = - 4 into f(x), that is

f(- 4) = 2(- 4)² + 4(- 4) - 7 = (2 × 16) - 16 - 7 = 32 - 23 = 9 → C

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