Explanation Calculation: Consider the inequality. x + 2 x − 7 ≥ 0 …… ( 1 ) Solve the above inequality as follows, Equate the numerator to 0 . x + 2 = 0 x = − 2 Equate the denominator to 0 . x − 7 = 0 x = 7 Consider the number line. The number line is divided into three intervals. Numbers less than − 2 , numbers between − 2 and 7 , and numbers greater than 7 . Figure ( 1 ) Choose − 3 for the interval x < − 2 . Substitute − 3 for x in equation ( 1 ) . − 3 + 2 − 3 − 7 ≥ 0 − 1 − 10 ≥ 0 1 10 ≥ 0 Choose 0 for the interval − 2 < x ≤ 7

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ISBN: 9781285195728

Author: Jerome E. Kaufmann, Karen L. Schwitters

Publisher: Cengage Learning

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Chapter 8.CM, Problem 63CM

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The inequality x+2x−7≥0.

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Chapter 8.CM, Problem 62CM

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Intermediate Algebra

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The inequality x + 2 x − 7 ≥ 0 .

Solution Summary: The author explains how to solve the inequality x+27ge 0.

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To solve:

The inequality x+2x−7≥0.

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Chapter 8 Solutions

The inequality x + 2 x − 7 ≥ 0 .

Solution Summary: The author explains how to solve the inequality x+27ge 0.

Videos

To solve: The inequality x+2x−7≥0.

Want to see the full answer?

Chapter 8 Solutions

To solve:

The inequality x+2x−7≥0.