Name:__________________________
Date: ________________
1) Identify the mapping diagram that
represents the relation and determine
whether the relation is a function. {(3, 1),
(6, 4), (8, 4)}
a)
2) Which graph represents a function?
The relation is a
function
b)
a)
The relation is not a
function
c)
b)
The relation is a
function
d)
The relation is not a
function
c)
d)
3) A function is defined by the following ordered pairs {(6, 4), (8, 1), (5, 6), (1, 2), (4, 9)}. What is the
range of the function?
a) {8}
b) {9}
c) {1, 2, 4, 6, 9}
d) {1, 4, 5, 6, 8}
Unit 2B Review
Name:__________________________
Date: ________________
4) Use the graph of a function. What is f(-3)?
a)
b)
c)
d)
6)
7)
8)
9)
5) Use the graph of a function shown. What is
the value of x when f(x) = -2
f(-3) = -4
f(-3) = 2
f(-3) = -2
f(-3) = 4
a) x = -1
b) x = 2
c) x = 3
d) x = 1
Joslen’s sister, QuoVadis, sells handmade purses. Her profit is represented by the function P(x) =
85x – 200, where P(x) represents the profit made after x number of purses have been sold. How
many purses would QuoVadis have to sell to begin making a profit?
a) 2
b) 3
c) 4
d) 5
Joslen’s sister, QuoVadis, sells handmade purses. Her profit is represented by the function P(x) =
85x – 200, where P(x) represents the profit made after x number of purses have been sold. How
much profit would QuoVadis make if she sold 20 purses?
a) $1330
b) $1415
c) $1500
d) $1585
Joslen’s sister, QuoVadis, sells handmade purses. Her profit is represented by the function P(x) =
85x – 200, where P(x) represents the profit made after x number of purses have been sold. How
many purses would QuoVadis have to sell to make $2010 in profit?
a) 26
b) 27
c) 28
d) 29
𝑥
10) Given 𝑓(𝑥) = 12 and 𝑓(𝑥) = 3𝑥 + 9, what
Given 𝑓(𝑥) = 8 − , evaluate f(33)
4
is the value of x?
65
a) 4
a) 12
1
b)
b) 27
4
1
c) 1
c) − 4
d) 45
65
d) − 4
Unit 2B Review
Name:__________________________
Date: ________________
12) Complete the input-output table for the function f(x) = 3x + 1
Input
2 ?
3 ?
Output ?
4 ?
13
a)
Input
Output
2
7
0
4
b)
Input
Output
2
7
1
4
3
10
3
10
4
13
4
13
c)
Input
Output
2
6
1
4
3
10
5
13
d)
Input
Output
2
7
1
4
3
9
4
13
13) Which of the following graphs represents a system of linear equations with a solution of (3, -4)
a)
c)
b)
d)
14) By what number should you multiply the
first equation to solve using the elimination
method?
– 2x – 9y = 18
4x + 3y = – 22
a) 2
b) – 4
c) 9
d) -3
15) Use elimination to solve the linear system.
6x + 2y = – 22
– 7x – 6y = 22
a) (– 4, 1)
b) (– 1, 4)
c) (1, – 4,)
d) (4, – 1)
Unit 2B Review
Name:__________________________
Date: ________________
17) Which of the following graphs correctly illustrates the solution to the given
y=x–4
y = -5x + 2
a)
c)
b)
d)
18) The students at Lithia Springs High School wanted to encourage people to buy tickets to the talent
show early. Tickets purchased at the door cost $7, and tickets purchased in advance cost $5.
Receipts from ticket sales totaled $2840 and there were 440 tickets sold. How many tickets were
sold at the door?
a) 2400
b) 120
c) 320
d) 560
19) The school that Tripp goes to is selling tickets to a theatre play. On the first day of the ticket sales,
the school sold 7 adult tickets and 12 students for a total of $142. The school took in $154 on the
second day by selling 13 adult tickets and 4 student tickets. Write a system of equations to
determine the price of the adult ticket, a, and the price of the student ticket, s. You do not have to
solve this system.
20) The manager of an ice cream truck was counting the money from 1 day of ice cream sales. He knew
that a total of 200 ice cream cones had been sold. One scoop of ice-cream cost $4 and two scoops
cost $7. If the total receipts for the day are $1292. How many of each size ice-cream was sold? A)
Write the system of equations to represent this situation. B) Solve the system using elimination. C)
How many of each size of ice-cream were sold?
Unit 2B Review