8.7 Solving Inequalities Objective: Students will solve one-step inequalities and graph them on the number line. Students will be able to describe what.

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Presentation transcript:

8.7 Solving Inequalities Objective: Students will solve one-step inequalities and graph them on the number line. Students will be able to describe what each answer and graph means.

Solve inequalities n + 8 > 3 x – 8 < 23 10 ≥ y + 4

St.Examples x + 2 > 3 1 ≤ x – 9 x + 4 < 3 -6 ≤ x - 9

Graphing Inequalities x + 4 < 5 m + 8 ≥ 12 z – 15 ≥ 65 h + 19 < 15

St. Examples f + 1 ≤ 6 z – 15 > 72 d - 8 < 7 d – 7 ≤ -8

Notes When dividing or multiplying by negative number, switch inequality sign. Ex: -2x < 6 -2x > 6 -2 -2

Inequality (division) 2x > -8 -7s ≤ 14 5a < 35 5z ≥ -65

Student Examples 9a < 36 12x ≤ -60 -7s > -84 -16k > 32

Inequality (multiplication)

Inequality (multiplication) B / 7 > 21 N / -3 ≥ -5 t/9 > 12 u/5 < 12

Wrap up Questions/Comments Ic/hw: workbook pg. 57, #1 - 24

Quiz Solve and graph the inequality. -3x < 12 X – 6 > 1