Upload
lamnguyet
View
220
Download
3
Embed Size (px)
Citation preview
DATE PERIOD
Homework Practice J Write and Graph Inequalities
Write a n inequality for each sentence.
1. More than 2,500 people attended the convention. p pecpU A If^t-A C\\>^^ p > z s o o
2. Her earnings were no more than $64. 6 60./^^^^ S
3. The winning 5K 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 minimum number of 12 participants is required to hold a bike rally. 0~\y^^h^ IP^"'̂ ' li P ^ i x
G r a p h each inequality on a number line. 7. > 15 8. s < 6 9. 6 > 13
H h 13 14 15 16 1
H h H h
10. ;c < 23
21 22
13. X > 30
24 25
M 5
11. r > 18
-i f
11 12 13 14 15
12. r > 5
16 1
14. 6 < 4
7 f r 19 20 H ^ » 3 4 5 6 7
15. a > 9
- h — H ^ 28 29 30 31 32'
H f-2 3 4 5 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.
• ̂ •CD I — ^ .
920 930 940 950 960 A ^ > n,
€^^J^'''^^fflS^^^^ For more examples, go to glencoe.com.
Chapter 8 53 Course 1
NAME
Problem-Solving Practice Write And Graph Inequalities
DATE PERIOD
1. ROLLER COASTER I n order to ride a roller coaster at the theme park, riders must be at least 52 inches ta l l . Write and graph an inequality to show the safe heights for riders.
h 50 51
^1 - IK& \ i
-Q H 52 53 54
S2- y\cUs
2. FARMING One forkl i f t can raise a maximum of 2,000 kilograms. Write and graph an inequality to describe the number of kilograms the forkl i f t can raise.
1500 2000 2500
3. INTERSTATES On interstate highways, the minimum allowable lane width is 12 feet. Write and graph an inequality to show the possible width of a lane.
4=
4. TRAVEL Traveling salespeople for a book company are paid at least $250 for each t r ip they take to sell books. Write and graph an inequality to describe the amount salespeople are paid per t r ip .
10 11 12 13 14 125
10 = ̂ \
250 375
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.
50 45
S <
55 60 65
6. TRIP Seniors who want to go on the group t r ip to the mountains have to pay at least $400 of their total b i l l before the payment deadline. Write and graph an inequality to describe the acceptable payment.
1 0 \V 300 350 400 450 500
? > H-oo
Chapter 8 54 Course 1