CPM Homework Help : AC Problem 9-8

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Home > AC > Chapter 9 > Lesson 9.1.1 > Problem 9-8

9-8.

Solve each of the following inequalities for the given variable. Represent your solutions on a number line.

$2\left(3p+1\right)>-4$
Step 1(a):
Solve the equation
$2\left(3p+1\right)>-4$ to find the boundary point.
Step 2(a):
Test values on both sides of the boundary point $\left(p=-1\right)$ to determine the solution region.
More Help (a):
$\begin{array}{r} 2 \left(3\left(-2\right) + 1\right) > - 4 \\ 2 \left(-5\right) > -4 \\ -10 > -4 \\ \text{False} \qquad \;\;\; \end{array}$
$\begin{array}{r} 2 \left(3\left(0\right) + 1\right) > - 4 \\ 2 \left(1\right) > -4 \\ 2 > -4 \\ \text{True} \qquad \;\;\; \end{array}$

$9k-2<3k+10$

$5-h\ge4$

Use the eTool below to represent your solutions on a number line.
Click the link at right for the full version of the eTool: 9-8 HW eTool

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