8.F.2
8.F.4
8.F.1
8.F.3
100
John’s pool initially contained 20 gallons of water. He added water to the pool at a rate of 5 gallons per minute. Sarah used the equation y = 35 + 5x to determine the total amount of water in her pool after x minutes. Which statement is true?
a) The water in the pools was added at the same rate.
b) The pools initially contained the same amount of water.
c) The water in John’s pool was added at a faster rate.
d) The water in Sarah’s pool was added at a faster rate.
a) The water in the pools was added at the same rate.
100
The equation y = 2.5x – 15 can be used to find the profit, y, in dollars, from Marcie’s lemonade stand when she sells x glasses of lemonade. What is the meaning of the y-intercept of this equation?
a) Each cup of lemonade sells for $2.50
b) Each glass of lemonade sells for $15.00.
c) It costs $2.50 to set up the lemonade stand.
d) It costs $15.00 to set up the lemonade stand.
d) It costs $15.00 to set up the lemonade stand.
100
Which of these relations is NOT a function?
a) 
b) 
c) 
d) 
c)
100
Which list of coordinate points is y a linear function of x?
a) {(3,3), (4,5), (5,8), (6,12)}
b) {(0,9), (2,7), (3,5), (5,7)}
c) {(9,7), (8,5), (6,3), (3,1)}
d) {(2,5), (3,8), (4,11), (5,14)}
d) {(2,5), (3,8), (4,11), (5,14)}
200
The coordinate points represent a linear function.
(0,2), (-2,-1.5), (-4,-5), (-6,-8.5)
In which equation is the slope 1 unit less than the slope of the function represented in the table?
a) 
b) 
c) 
d) 
d)
200
Kenneth bought bananas for $0.59 per pound. Gretchen bought bananas at a different store for $0.20 more per pound than Kenneth. Which equation represents the total cost, y, of the bananas that Gretchen bought, based on the number of pounds, x?
a) y = 0.39x + 0.20
b) y = 0.59x + 0.20
c) y = 0.39x
d) y = 0.79x
d) y = 0.79x
200
Which of the equations shown below represents a function?
Equation 1 : 
Equation 2 : 
Only Equation 1
200
Which equation represents a linear function?
a)
b)
c) 
d) 
c)
300
Three go-cart drivers competed in a 5-mile race. The data show their average speed in miles per minute.
In what order did they finish the race?
1st = Driver C
2nd = Driver A
3rd = Driver B
300
These points show the change in price for concert tickets.
(2012, 65)
(2017, 72.5)
If the price continues to rise at a constant rate each year, what will be the price of a concert ticket in 2020?
a) $74.00
b) $75.50
c) $77.00
d) $80.00
c) $77.00
300
Mary earns $7.25 an hour. She can determine her salary, s, for the number of hours she works, h, by using the equation s = 7.25h. Which statement explains why s is a function of h?
a) For every value of h there is only one value of s.
b) For some values of h there is more than one value of s.
c) For some values of s there is more than one value of h.
d) For every value of s there are two values of h.
a) For every value of h there is only one value of s.
300
Which statement correctly describes the graph below?
a) The graph represents a nonlinear function because it is not a straight line.
b) The graph represents a linear function because it is in the shape of a parabola.
c) The graph represents a linear function because every input has exactly one output.
d) The graph represents a nonlinear function because there is more than 1 x-value that corresponds to each y-value.
a) The graph represents a nonlinear function because it is not a straight line.