Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 3 - Solving Inequalities - 3-2 Solving Inequalities Using Addition or Subtraction - Practice and Problem-Solving Exercises - Page 175: 40



Work Step by Step

3.8≥b+4⟶ subtract 4 from each side 3.8−4≥b+4−4⟶ subtract −0.2≥b Check the endpoint. 3.8=?−0.2+4 3.8=3.8✓ Check the inequality. 3.8≥?−2+4 3.8≥2✓ Since -0.2 is included in the solution, the endpoint of the graph is a solid circle.
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