Quiz about Math Relations and Functions Review

Question 1

Which linear function has a greater slope?

Accepted Answer

Function 1

Answer

Function 2

Answer

They have the same slope.

Question 2

Which linear function lited has a negative slope?

Accepted Answer

Function 1

Answer

Function 2

Answer

They both have a negative slope.

Answer

Neither, both slopes are positive.

Question 3

Which of the following are linear functions? Select all that apply.

Accepted Answer

$$y=-2x+3$$

Accepted Answer

$$y=0.25+0.5\left(x-2\right)$$

Answer

$$y=\pi x^2$$

Answer

D.

Answer

E.

Question 4

How fast was the car traveling in miles per hour (mph) between 25 minutes and 40 minutes?

Accepted Answer

a constant speed of 50 mph

Answer

speeds between 20 mph and 50 mph

Answer

speeds between 35 mph and 0 mph

Answer

a constant speed of 40 mph

Question 5

The function $$y=45x+300$$ can be used to model the cost of buying new furniture and making monthly payments over the period of x months. Which of the following BEST describes the y-intercept of the graph?

Accepted Answer

the amount of the down payment

Answer

the monthly payment amount

Answer

the number of months to pay off the balance

Answer

the number of pieces of furniture bought

Question 6

Which equation can be used to graph all the points on the line?

Accepted Answer

$$y=x+1$$

Answer

$$y=2x$$

Answer

$$y=x-1$$

Answer

$$y=2x-1$$

Question 7

Which graph represents a linear function?

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Answer

D.

Question 8

Two companies offer tractors for rental.They each require a deposit and then a charge per hour to use a tractor. Company #1 charges a $25 deposit and then $18 per hour. The cost to use a tractor from Company #2 is shown in this table. Which company charges more per hour to use the tractor and how much more?

Accepted Answer

Company #2, $4

Answer

Company #1, $5

Answer

Company #2, $5

Answer

Company #1, $4

Question 9

Which graph represents a function with a greater rate of change than the equation $$y=2x-3$$ ?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 10

Which relation is not a function?

Accepted Answer

<(1,-5), (-1,6), (1,5), (6,-3)>

Answer

<(1,-5), (3,1), (-5,4), (4,-2)>

Answer

<(2,7), (3,7), (4,7), (5,8)>

Answer

<(3,-2), (5,-6), (7,7), (8,8)>

Question 11

Which relation is a function?

Accepted Answer

<(0,2), (1,3), (2,3), (3,2)>

Answer

<(0,1), (1,2), (3,3), (3,4)>

Answer

<(1,3), (2,2), (2,0), (3,4)>

Answer

<(1,2), (2,2), (3,2), (1,3)>

Math Relations and Functions Review

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