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