Algebra 1 Companion Book, Vol 1 – Summer Edition

3.1.1 Graphing and Writing Inequalities − Worksheet

Example 1:

Describe the solutions of each inequality in words.

1. g − 5 ≥ 6

2. − 2 < h + 1

3. 20 > 5 t

4. 5 − x ≤ 2

Example 2:

Graph each inequality.

1 2

5. x < − 5

6.

7. (4 − 2) 3 > m

8.

≥ c 3

≥ + p 17 8

Example 3:

Write the inequality shown by each graph.

1 2

9.

10.

–8

–6–5–4–3–2–1 0 1 2 3 4

–9–8–7–6–5–4–3–2–1 0 1

11.

12.

–4–3–2–10 1 2 3 4 5 6 5.5

–12 –10 –8 –6 –4 –2 0 –7

13.

14.

–2 0 2 4 6 8 1012141618

–4–3–2–10 1 2 3 4 5 6

Example 4: Define a variable and write an inequality for each situation. Graph the solutions. 15. There must be at least 20 club members present in order to hold a meeting.

16. A trainer advises an athlete to keep his heart rate under 140 beats per minute.

150

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