Big Ideas Math Integrated I, 2016
BI
Big Ideas Math Integrated I, 2016 View details
1. Writing and Graphing Inequalities
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Exercise 2 Page 54

The phrase at least divides the sentence into what should be on the left-hand side and what should be on the right-hand side of the inequality.

- 7/10 ≥ 2k-4

Practice makes perfect
Every inequality has an inequality symbol and values or expressions on either side of this symbol. In this exercise, we have the phrase at least, so we can identify that the inequality symbol should be ≥. -7/10 ≥ twice a number k minus 4

On the right-hand side, we have two key phrases: twice a number and minus. These words tell us the operations that will be used in our inequality. Twice a number indicates multiplication by 2 and minus indicates subtraction. twice a number k minus 4 2 k - 4 On the left-hand side, we have a constant. Putting these sides together, we have a complete inequality. -7/10 is at least twice a number k minus 4 -7/10 ≥ 2 k - 4