DATE
PERIOD
Homework Practice
J Write and Graph Inequalities
Write a n inequality for e a c h sentence.
p
1. More than 2,500 people attended the convention.
p > zsoo
2. Her earnings were no more than $64.
pecpU
A If^t-A
C\\>^^
60./^^^^ S
6
3. The w i n n i n g 5 K race time was less than 22 minutes.
4. A checking-account balance is no more than $500.
b
^^'^'^
^
5. A maximum ceiling height of 8 feet was required i n the new buildings.
K '
6. A m i n i m u m number of 12 participants is required to hold a bike rally.
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G r a p h e a c h inequality on a n u m b e r line.
7. > 15
8. s < 6
13
h
14
15
16
1
10. ;c < 23
21
13.
X
M
H
24
22
25
-i16
29
30
^
H
11
5
1f7
fr
19
H
20
32'
2
^
3
13
14
15
4
5
»
6
7
15. a > 9
H
31
h
12
12. r > 5
14. 6 < 4
-h—H
9. 6 > 13
h
11. r > 18
> 30
28
^
P^ix
li
H
^
3
4
5
f-
6
9
10
16. DONATIONS Total donations at the Fireman's Ball failed to reach $940. Write
and graph an inequality that represents the amount raised.
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920
930
940
I
950
—
960
^
.
A ^ > n,
€^^J^'''^^fflS^^^^ For more examples, go to glencoe.com.
Chapter 8
53
Course 1
NAME
DATE
PERIOD
Problem-Solving Practice
Write And Graph Inequalities
1. ROLLER COASTER I n order to ride a
roller coaster at the theme park, riders
must be at least 52 inches tall. Write
and graph an inequality to show the
safe heights for riders.
50
^1 -
h
-Q
51
52
IK& \
i
H
53
S2-
2. FARMING One forklift can raise a
maximum of 2,000 kilograms. Write
and graph an inequality to describe the
number of kilograms the forklift can
raise.
54
1500
11
12
4=
13
2500
y\cUs
3. INTERSTATES On interstate highways,
the m i n i m u m allowable lane w i d t h is
12 feet. Write and graph an inequality
to show the possible w i d t h of a lane.
10
2000
4. TRAVEL Traveling salespeople for a book
company are paid at least $250 for each
t r i p they take to sell books. Write and
graph an inequality to describe the
amount salespeople are paid per trip.
125
14
250
375
10 = ^ \
6. TRIP Seniors who want to go on the
group trip to the mountains have to pay
at least $400 of their total bill before
the payment deadline. Write and graph
an inequality to describe the acceptable
payment.
5. SPEED LIMIT The speed l i m i t on most
state roads is 55 miles per hour. Write
and graph an inequality to describe the
legal speed on state roads.
45
50
55
60
65
300
S <
Chapter 8
1
350
0
400
\V
450
500
? > H-oo
54
Course 1