TEKS.MATH.9-12.VII.C

Daniel’s Print Shop purchased a new printer for $35,000. Each year it depreciates at a rate of 5%. How much will the printer be worth in 8 years?

• $23,219.72
• $136.72
• $51,710.94
• $16,710.94

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TEKS.MATH.9-12.VII.C

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

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TEKS.MATH.9-12.VII.C

A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?

• 14327
• 4309
• 839
• 7680

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TEKS.MATH.9-12.VII.C

Olivia would like to buy some new furniture for her home. She decides to buy the furniture on credit with 9.5% interest compounded quarterly. If she spent $7,400, how much total will she have paid after 8 years.

• $15,415.94
• $15,683.28
• $15,927.56
• $16,109.05

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TEKS.MATH.9-12.VII.C

The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding.  What is the equation of the line of best fit?

• y = -25x + 170
• y = 25x + 170
• y = -(5/8) x + 170
• y = (5/8) x + 170

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TEKS.MATH.9-12.VII.C

Pedro throws a ball upward at a rate of 20 meters per second from an initial height of 4 meters. The height of the ball above the ground can be approximated by the equation below, where t represents the amount of time in seconds since the ball has been released. 
h= -5t²+20t+4
After how many seconds does the ball reach its maximum height?

• 0 seconds
• 4 seconds 
• 22 seconds
• 2 seconds

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TEKS.MATH.9-12.VII.C

TEKS.MATH.9-12.II.C

The total cost in dollars to buy uniforms for the players on a volleyball team can be found using the function c = 34.95u + 6.25, where u is the number of uniforms bought. If there are at least 8 players but not more than 12 players on the volleyball team, what is the domain of the function for this situation?

• 0 < u ≤ 12

• 0 < c ≤ 425.65

• {8, 9, 10, 11, 12}

• {285.85, 320.80, 355.75, 390.70, 425.65}

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TEKS.MATH.9-12.VII.C

You and some friends went to a haunted house on Halloween. The mummy scared one friend so much that she jumped into the air! The equation h = -4t² + 2t models her jump where h is her jump's height in feet t seconds after the mummy scares her. When did she reach her maximum height?

• 0.1 seconds

• 0.25 seconds

• 0.50 seconds

• 1 second

• 2 seconds

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TEKS.MATH.9-12.VII.C

TEKS.MATH.9-12.VIII.A

North Dakota has recently had the fastest growing population out of all 50 states. On Jan 1, 2013, the population of North Dakota was 700,000 people. North Dakota’s population has been growing by 5% per year. Express North Dakota’s population, N, in terms of years since 2013, t.

Check the BEST answer:

• N=700,000(1.05)t

• N=700,000(1.5)t

• N=700,000(1-0.05)^t

• N=700,000(0.95)^t

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TEKS.MATH.9-12.VII.C

A school cafeteria records the amount of money it receives for different numbers of students who purchase school lunch.

Which best describes the expression  $f\left(78\right)$  

• $78 was spent on lunch on the fourth day of school

• $351.00 was taken in when there were 78 students

• $78 was spent by 351 students

• When there were 78 students, the cafeteria took in 78*317 or $27,378.00

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TEKS.MATH.9-12.VII.C