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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

7. Systems of Linear Inequalities

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Exercise 9 Page 259

Which inequality changes and how does that affect the solution?

No, see solution.

Practice makes perfect

We want to spend at least 3 hours at the mall, so we need to change the inequality that describes this from x ≥2 to x≥3 as x is the number of hours at the mall.

orignal system

The ordered pair (2.5,5) means that we spend 2.5 hours at the mall and 5 hours at the beach. However, we want to spend at least 3 hours at the mall now. Therefore, this is no longer a solution to this system.

no solution

Subchapter links

Communicate Your Answer p.255

Monitoring Progress p.256-259

Exercises p.260-262