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7 November, 15:10

The function f is defined by f (x) = 7x-5. Use this formula to find the following values of f.

f (3)

+2
Answers (2)
  1. 7 November, 15:36
    0
    f (3) = 16

    Step-by-step explanation:

    Put 3 where x is and do the arithmetic.

    ... f (3) = 7·3 - 5 = 21 - 5 = 16
  2. 7 November, 15:37
    0
    f (3) = 16

    Step-by-step explanation:

    f (x) = 7x-5

    We want to find the value when x=3

    f (3) = 7*3 - 5

    f (3) = 21-5

    f (3) = 16
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