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28 March, 00:40

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

+2
Answers (1)
  1. 28 March, 00:46
    0
    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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