WorksheetsMIXED REVIEW ON LINEAR FUNCTION QUESTIONS.
Total questions: 30
Worksheet time: 23mins
Name
Class
Date
1.
A pizzeria charges $12 per pizza plus an additional $3 for delivery. Which equation represents the cost of having any number of pizzas delivered?
a)
c = 12p + 3
b)
c = 12p
c)
c = 3p
d)
c = 12 + 3p
2.
Find the function rule.
a)
y = 2x
b)
y = 2x+3
c)
y = 3x+3
d)
y = -2x+3
3.
a)
8
b)
-24
c)
24
d)
-22
4.
a)
27
b)
21
c)
24
d)
72
5.
Identify the function rule that best represents the following statement:
The total cost (C) for kilograms of beef (k) if each kilogram costs $2.55
The total cost (C) for kilograms of beef (k) if each kilogram costs $2.55
a)
C = 2.55k
b)
C = 2.55 + k
c)
C = 2.55 - k
d)
C = 2.55k + 2.55
6.
Identify the function rule that best represents the following statement:
A soda machine sells drinks for 75 cents each. Let d represent the number of drinks bought and C represent the total cost.
A soda machine sells drinks for 75 cents each. Let d represent the number of drinks bought and C represent the total cost.
a)
d = $0.75C
b)
d = $0.75 + C
c)
C = $0.75 + d
d)
C = $0.75d
7.
f(x)=4x+5
f(4)=
f(4)=
a)
21
b)
-11
c)
-31
d)
25
8.
f(x)=x2-5x
f(4)=
f(4)=
a)
-4
b)
126
c)
24
d)
84
9.
f(x)=2x+2
f(x)= 2
f(x)= 2
a)
6
b)
-8
c)
10
d)
0
10.
f(x)=4x+5
f(4)=
f(4)=
a)
21
b)
-11
c)
-31
d)
25
11.
f(x)=x2-5x
f(4)=
f(4)=
a)
-4
b)
126
c)
24
d)
84
12.
Is this a function?
a)
Yes
b)
No
c)
Let me ask my dog...
d)
Why are there letters in math?
13.
Evaluate f(x)=-2x+13 for f(10)
a)
-7
b)
1
c)
-8
d)
7
14.
What is the definition of function?
a)
Has inputs and outputs
b)
Every input has only ONE output
c)
Inputs have different outputs every time
d)
x-values and y-values
15.
Evaluate f(x) = x2 for f(-8)
a)
64
b)
-64
c)
-16
d)
16
16.
A plumber charges a service fee of $40 plus $25 per hour for labor.
(A) Write a function rule for the total cost of hiring the plumber for a job that takes x hours.
(B) How much would it cost to hire the plumber for a job that takes 4 hours?
(A) Write a function rule for the total cost of hiring the plumber for a job that takes x hours.
(B) How much would it cost to hire the plumber for a job that takes 4 hours?
a)
(A) y = 40 + 25x
(B) $140
(B) $140
b)
(A) y = 40x + 25
(B) $185
(B) $185
c)
(A) y = 40 + 25x
(B) $185
(B) $185
d)
(A) y = 40x + 25
(B) $140
(B) $140
17.
What is the value of f(0)?
a)
-2
b)
2
c)
4
d)
0
18.
For what value of x does f(x) = -2?
a)
0
b)
-5
c)
3
d)
-3
19.
What is the value of f(-5)?
a)
-2
b)
2
c)
4
d)
0
20.
Evaluate y = x + 5 when x = 3.
a)
8
b)
2
c)
9
d)
6
21.
Evaluate y = 4x - 1 when x = 10.
a)
39
b)
41
c)
399
d)
38
22.
A plumber charges a service fee of $40 plus $25 per hour for labor.
(A) Write a function rule for the total cost of hiring the plumber for a job that takes x hours.
(B) How much would it cost to hire the plumber for a job that takes 4 hours?
(A) Write a function rule for the total cost of hiring the plumber for a job that takes x hours.
(B) How much would it cost to hire the plumber for a job that takes 4 hours?
a)
(A) y = 40 + 25x
(B) $140
(B) $140
b)
(A) y = 40x + 25
(B) $185
(B) $185
c)
(A) y = 40 + 25x
(B) $185
(B) $185
d)
(A) y = 40x + 25
(B) $140
(B) $140
23.
A water tank holds 84 gallons. When it began to leak it lost 3 gallons every hour. Write an equation to find the amount of water "y" the tank will have after "x" number of hours.
a)
y = 84 - 3x
b)
y = 3 - 84x
24.
Write the function rule for the following table.
a)
5x
b)
5x + 1
c)
x + 5
d)
x + 1
25.
At what rate did the rain fall?
a)
2 cm per hour
b)
1/4 cm per hour
c)
1/2 cm per hour
d)
4 cm per hour
26.
Which rate of change represents the graph shown?
a)
-15 feet per minute
b)
15 feet per minute
c)
-200 feet per minute
d)
200 feet per minute
27.
What is the rate of change in the equation?
y=8x+6
y=8x+6
a)
8
b)
6
28.
What is the initial value?
a)
-3
b)
0
c)
3
d)
20
29.
Tim bought a new phone. He paid $125 on the day of purchase, then $50 per month until it was paid off. What is the initial value in this situation?
a)
50
b)
125
30.
Tim bought a new phone. He paid $125 on the day of purchase, then $50 per month until it was paid off. What is the rate of change in this situation?
a)
50
b)
125
100 %
