Functions Worksheet - Big Ideas Math Prealgebra: A Florida Standards Curriculum Teaching Edition Page 9
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47Draw a mapping diagram for the graph. Then describe the pattern of inputs and outputs.
13.
14.
15.
y
3
3
y
y
3
12
35
2
10
30
1
8
25
6
20
3
2
1
1
2
3
x
4
15
2
2
10
3
5
4
2
2
4
6
8
x
0
0
1
2
3
4
5
6
7
8
9
x
16.
SCUBA DIVING
The normal pressure at sea level is one
atmosphere of pressure (1 ATM). As you dive below sea level,
the pressure increases by 1 ATM for each 10 meters of depth.
Input,
Output,
a. Complete the mapping diagram.
Depth
Pressure
b. Is the relation a function? Explain.
c. List the ordered pairs. Then plot the
0 m
1 ATM
ordered pairs in a coordinate plane.
10 m
2 ATM
d. Compare the mapping diagram and
20 m
graph. Which do you prefer? Why?
30 m
e.
RESEARCH
What are common depths
40 m
for people who are just learning to
50 m
scuba dive? What are common depths
for experienced scuba divers?
17.
MOVIES
A store sells previously viewed movies. The table
Movies
Cost
shows the cost of buying 1, 2, 3, or 4 movies.
1
$10
a. Use the table to draw a mapping diagram.
2
$18
b. Is the relation a function? Explain.
3
$24
c. Describe the pattern. How does the cost per movie
4
$28
change as you buy more movies?
Repeated
Repeated
18.
The table shows the outputs
Reasoning
Reasoning
Input, x
0
1
2
3
4
for several inputs. Use two methods to
Output, y
25
30
35
40
45
fi nd the output for an input of 200.
The coordinates of a point and its image are given. Is the refl ection in the
x-axis or y-axis?
(Section 2.3)
(3, − 3)
(− 3, − 3)
(− 5, − 1)
(− 2, − 4)
19.
20.
(− 5, 1)
21.
(− 2, 4)
22.
MULTIPLE CHOICE
Which word best describes two fi gures that have the same size
and the same shape?
(Section 2.1)
○
○
○
○
congruent
dilation
parallel
similar
A
B
C
D
Section 6.1
Relations and Functions
247
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