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2 March, 16:58

Evaluate the function.

Find f (-1) when f (x) = x2 - 2x - 7

A.-8

B.-4

C. 6

D. 10

+3
Answers (1)
  1. 2 March, 17:45
    0
    f (x) = x² - 2x - 7

    f (-1), this means that x = - 1.

    Since you need to find f (-1), substitute/plug in - 1 into "x" in the function:

    f (x) = x² - 2x - 7 Plug in - 1 into "x"

    f (-1) = (-1) ² - 2 (-1) - 7

    f (-1) = 1 + 2 - 7

    f (-1) = - 4 Your answer is B
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