Warm ups Solve for x. x + 14 = x = 4 5x – 3 = 4x + 2

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Presentation transcript:

Warm ups Solve for x. x + 14 = 16 -11 + x = 4 5x – 3 = 4x + 2

7-1 Solving Inequalities using Addition and Subtraction Objective: To solve inequalities by adding or subtracting. Standard 5.0

Inequalities – not equal is at least is at most

Examples 1. 2. 3. 4. 5.

Graphing – letter always on left Shade on number line – the arrow will tell you what direction to shade < open circle to left x < 7 > open circle to right x > -2 7 -2

Graphing (continued) < closed circle to left x < -13 > closed circle to right x > 18 -13 18

4 Things you need: TOO: y > 28 r<31 Circle Number and zero Shaded or open circle Arrow (shading) TOO: y > 28 r<31

Translate, solve, and graph Three times a number is more than the difference of twice that number and three.

Homework Pg. 388 # 17 - 39 Don’t forget to shade! (It’s okay to be shady today)