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19 February, 13:29

Given f (x) = x + 9 and g (x) = 5x, what is f (3) + g (-3) ?

-3

3

-27

27

+5
Answers (1)
  1. 19 February, 13:50
    0
    F (3) = 3 + 9 = 12 (just substitute the value of x in f (x))

    g (-3) = 5 x - 3 = - 15

    f (3) + g (-3) = - 15 + 12 = - 3 (A)
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