Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
4. Writing and Graphing Inequalities
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Exercise 9 Page 147

Substitute - 4 into the given inequality and then simplify.

No.

Practice makes perfect
We can determine whether - 4 is a solution by substituting it into the inequality and simplifying.
6 > p Ă· (- 0.5)
6 ? > ( - 4) Ă· (- 0.5)
6 ? > - 4/- 0.5
6 ? > - 40/- 5
6 ? > 40/5
6 > 8 *
Since 6 is not greater than 8, - 4 is not a solution.