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Home > CCA > Chapter 11 > Lesson 11.3.1 > Problem 11-78

11-78.
  1. If f(x) = 12-69 and g(x) = (x − 2)3, find each output value below (if possible). If it is not possible, explain why not. Homework Help ✎

    1. f(−2)

    2. g(−1)

    3. g(4)

    4. f(−7) + g(1)

    5. f(3) − g(2)

Substitute −2 for x.

Is it possible to divide by 0?

No solution.

Substitute −1 for x.
(x − 2)3
(−1 − 2)3

−27

See the help for part (b).

Substitute −7 for x in f(x) and 1 for x in g(x),
then add the results together.

1 + (− 1) = 0

See the help for part (d).