TEKS.MATH.K.9A

The commission of a sales representative can be modeled by C(x) = 4x - 10, where x is the number of items sold.  If the sales representative sales 30 items, how much commission will they earn?

• $20
• $120
• $5
• $110

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TEKS.MATH.K.9A

What are the possible values for the range?
Ted has all day to work on a car.  The money that he makes from working on the car can be modeled by the equation y=30x + 15, where x represents the hours he spends working.

• 0  to 15
• 15 to 735
• 0 to 735
• not enough information

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TEKS.MATH.K.9A

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours
• 35 hours
• 45 hours
• 15 hours

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TEKS.MATH.K.9A

Derek works at Subway making $9.25 an hour.  The function d(x)=9.25x tells us how much money Derek makes after x hours of working.  What is the meaning of d(4)=37?

• After 4 hours of work, Derek makes $37.
• Derek needs $4 more to have $37 total.
• After working for 4 days, Derek makes $37 total.
• After 4 hours of work, Derek now makes $37 an hour instead of $9.25.

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TEKS.MATH.K.9A

What is the constant of proportionality?

• $3
• $4
• $2
• $9

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TEKS.MATH.K.9A

Which statement below accurately represents the graph?

• $100 is earned for each hour
  worked
• $100 is earned for every 2 hours worked
• $500 is earned for every 8 hours worked
• $200 is earned for every 3 hours worked

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TEKS.MATH.K.9A

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

• $50 per hour
• $12 per hour
• $192 per hour
• $25 per hour

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TEKS.MATH.K.9A