Unit 5 Test Review

• (2,5)

• (3,4)

• (−3,−2)

• (9,−5)

• (7,−3)

• (5,0)

• (−6,6)

• (0,−5)

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Which graph represents the inequality 4y−16<12x?

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A university will spend at most $4,500 to buy monitors and keyboards for a computer lab. Each monitor will cost $250, and each keyboard will cost $50. Which inequality represents all possible combinations of x, the number of monitors, and y, the number of keyboards, the university can buy for the computer lab?

• 250x + 50y ≤ 4500

• 250x + 50y > 4500

• 50x + 250y ≤ 4500

• 50x + 250y < 4500

A customer is ordering hats and T-shirts from an online store. Each hat costs $7, and each T-shirt costs $10. The customer receives free shipping if the amount of the order is over $100. Write an inequality that represents all possible combinations of hats, x, and T-shirts, y, in an order that qualifies for free shipping.

​ (a)   x + ​ (b)   y ​ (c)   ​ (d)  

• =
• 17
• 7
• 10
• 100

Which of the following shows the solution set of the system of inequalities: −x+3y≥17, x−y<−3?

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What is the solution to the equation −4(2m − 7) = 3(52 − 4m)?

Mathematical Equivalence

ON

The domain is the set of all numbers ​ (a)   and ​ (b)   .

The range is the set of all numbers ​ (c)   and ​ (d)  

• greater than or equal to 2
• greater than -2
• less than 4
• greater than or equal to -2
• less than 2
• greater than -3
• less than or equal to 4