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Big Ideas Math Integrated I, 2016
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Big Ideas Math Integrated I, 2016 View details
1. Writing and Graphing Inequalities
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Exercise 36 Page 59

For inequalities on a number line, what does it mean when a point is open or closed?

Practice makes perfect
To graph an inequality on a number line, we need to make note of two things: the direction of the inequality and whether it is strict. Since the absolute value of a positive number is the same number, we can write -|5 | as - 5.

r ≥ -5 Observing the given inequality, we see that all values of r are greater than or equal to -5. This means that the solution set lies to the right of -5 on a number line. Furthermore, the inequality symbol indicates that r=-5 is a solution, which we will mark with a closed circle on the number line at -5.

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arrow_right Communicate Your Answer p.53
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Communicate Your Answer 4 (Page 53)
arrow_right Monitoring Progress p.54-57
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arrow_right Exercises p.58-60
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