Which equation shows the number of bottles left after x days?
A family buys a case of water with 48 bottles and drinks 5 bottles per day.
Function Modeling Word Problems

Quiz
•
Mathematics
•
9th Grade
•
Hard
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y = 48x + 5
y = -5 + 48x
y = -5x - 48
y = 48 - 5x
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage. If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?
C = 0.20x + 15
C =15 (0.20x)
C = 15 + x + 0.20
C = 0.20 + 15x
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following situations could be descried by the equation y= -25x + 120
There are 120 people in the football stadium, and 25 more are entering each hour.
A plumber charges $25 for a house call and $120 per hour.
A teacher has 120 students. Her third period has 25 students
There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bob has $150 in his savings account and saves $40 per month.
y = 150 + 40
y = 40x + 150
y = 150x + 40
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The total cost (y) at an amusement park can be modeled by y=1.5x+20 where x is the number of rides you ride. What is the price per ride?
1.5
21.5
0
20
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The height of a water balloon that is launched into the air is given by h(t) = -5x2+20x+25. When will the balloon explode on the ground?
5 seconds
1 second
2 seconds
3 seconds
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
h = -16t2 + 64t + 960.
How many seconds did it take for the ball to reach its maximum height?
10 seconds
64 seconds
960 seconds
2 seconds
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