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Home > CCA > Chapter 9 > Lesson 9.2.1 > Problem 9-51

9-51.
  1. Solve each of the following inequalities for the given variable. Represent your solutions on a number line. 9-51 HW eTool (CPM). Homework Help ✎

    1. 2(3p + 1) > −4

    2. 9k − 2 < 3k + 10

    3. 5 − h ≥ 4

Solve the equation
2(3p + 1) = −4 to find the boundary point.

Test values on both sides of the boundary point (p = −1) to determine the solution region.

2(3(−2) + 1) > −4 2(3(0) +1) > −4
2(−5) > −4 2(1) > −4
−10 > −4 2 > −4
False True

Use the eTool below to represent your solutions on a number line.
Click the link at right for the full version of the eTool: CCA 9-51 HW eTool