daryberricand3 daryberricand3
  • 26-11-2016
  • Mathematics
contestada

If f(x)=4x-7 and g(x)=2x+4, evaluate f(x)+g(x)for x=-3

a.-52
b.-21
c.-22
d.-15

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 29-11-2016
f(x) = 4x - 7
g(x) = 2x + 4
f(x) + g(x) = 4x - 7 + 2x + 4 = 6x - 3
(f + g)(-3) = 6(-3) - 3 = -18 - 3 = -21.
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