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 29 Page 150

Substitute 3 into the given inequality and then simplify.

No.

Practice makes perfect
We can determine whether 3 is a solution by substituting it into the inequality and simplifying.
4k < k + 8
4* 3 ? < 3 + 8
12 ? < 3 + 8
12 < 11 *
Since 12 is not less than 11, 3 is not a solution.