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 10 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 using the order of operations.
- 7 < 2g + 1
- 7 ? < 2( - 4) + 1
- 7 ? < - 8 + 1
- 7 < - 7 *
Since - 7 is not less than - 7, - 4 is not a solution.