Illustrative Math - Algebra 1 - Unit 2- Lesson 21

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17 Questions
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Select all coordinate pairs that are solutions to the inequality 5x+9y<45.
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The boundary line on the graph represents the equation 5x+2y=6. Write an inequality that is represented by the graph.

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Choose the inequality whose solution set is represented by this graph.
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Mai and Tyler are selling items to earn money for their elementary school. The school earns w dollars for every wreath sold and p dollars for every potted plant sold. Mai sells 14 wreaths and 3 potted plants and the school earns $70.50. Tyler sells 10 wreaths and 7 potted plants and the school earns $62.50.

This situation is represented by this system of equations:

Explain why it makes sense in this situation that the solution of this system is also a solution to 4w+(-4p)=8.00.
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Elena is planning to go camping for the weekend and has already spent $40 on supplies. She goes to the store and buys more supplies.

Which inequality represents d, the total amount in dollars that Elena spends on supplies?
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Solve this inequality: \frac{x-4}{3}\geq \frac{x+3}{2}
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Which graph represents the solution to \frac{4x-8}{3}\leq2x-5?
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Solve -x < 3 . Explain how to find the solution set.
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This lesson is from Illustrative Mathematics. Algebra 1, Unit 2, Lesson 21. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/1/2/21/index.html ; accessed 26/July/2021.

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