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Home > CALC > Chapter 1 > Lesson 1.4.4 > Problem 1-189

1-189.
  1. Let g(x) = (3x − l)2. Homework Help ✎

    1. Find g(−5).

    2. Find g(a + 1) and simplify.

    3. If g(x) = 49, find x.

    4. Find g−1 (x).

g(−5) = 256

Set (3x - 1)² equal to 49 and solve for x.

Substitute (a + 1) for x. Simplify.

Let g(x) = y. Solve for x. Then switch the x and y.

Remember the ±.