Chapter 1: Q36. (page 44)

Solve each inequality. Graph the solution set on a number line.
36. $|- 5 y| < 35$

Short Answer

Expert verified

Solution of inequality is $7 > y and y > - 7$

Solution set in number line is

Step by step solution

- Definition of absolute value inequality

For real numbers $a and b$ with $b > 0$

Absolute value inequality is $|a| < b$ when $- b < a and a < b$ , and

Absolute value inequality is $|a| > b$ when $a < - b or a > b$

- Write properties of inequality

Properties of inequalities are written in following table:

- Simplify -5y<35

From definition of absolute value inequality, given expression is simplified to

$- 35 < - 5 y and - 5 y < 35$

Use division property of inequality, divide with same negative number reverse the sign of inequality as shown below

$\begin{matrix} \frac{- 35}{- 5} > \frac{- 5 y}{- 5} and \frac{- 5 y}{- 5} > \frac{35}{- 5} \\ 7 > y andy > - 7 \end{matrix}$

- Graph the solution set

For $7 > y and y > - 7$ , number line starts from $- 7$ to 7

Open circle on $- 7 and 7$ shows these points are not included in the solution.

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Solve each inequality. Graph the solution set on a number line.
36. $|- 5 y| < 35$

Short Answer

Step by step solution

- Definition of absolute value inequality

- Write properties of inequality

- Simplify -5y<35

- Graph the solution set

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Solve each inequality. Graph the solution set on a number line.36. -5y<35

Short Answer

Step by step solution

- Definition of absolute value inequality

- Write properties of inequality

- Simplify -5y<35

- Graph the solution set

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Probability and Statistics

Logic and Functions

Decision Maths

Theoretical and Mathematical Physics

Discrete Mathematics

Applied Mathematics

Study anywhere. Anytime. Across all devices.

Solve each inequality. Graph the solution set on a number line.
36. $|- 5 y| < 35$