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Home > PC > Chapter 9 > Lesson 9.1.4 > Problem 9-56

9-56.
  1. Compute the following limits using either algebra or your calculator. Homework Help ✎

    1. when f(x) = 3x − 4.

    2. when g(x) = .

Substitute 3 in for x.
You can do that because you do not have division by zero.

Do NOT substitute 2 in for 'x' yet or you will have division by zero problem. Factor first, eliminating this problem. Then substitute 2 in for 'x'.