Name:    Chapter 5 Test

Multiple Choice
Identify the choice that best completes the statement or answers the question.

Find the unit rate.

1.

232 miles in 4 hours
 a. 62 miles per hour c. 56 miles per hour b. 58 miles per hour d. 61 miles per hour

2.

\$3.60 for 20 ounces
 a. \$0.16 per ounce c. \$0.22 per ounce b. \$0.18 per ounce d. \$0.13 per ounce

3.

Use a graph to tell whether x and y are in a proportional relationship.
 x 1 2 3 4 y 2 4 6 8
 a. yes c. no b. yes d. no

4.

Use a graph to tell whether x and y are in a proportional relationship.
 x 1 2 3 4 y 3.5 5 6.5 8
 a. yes c. yes b. no d. no

Use the table to write a proportion.

5.

 Triangle 1 Triangle 2 Base (inches) b 4 Height (inches) 6 11
 a. c. b. d.

6.

 Race 1 Race 2 Meters 40 60 Seconds 8 s
 a. c. b. d.

Use the Cross Products Property to solve the proportion.

7.

 a. s = 38 c. s = 36 b. s = 35 d. s = 32

8.

 a. n = 4 c. n = 208 b. n = 14 d. n = 16

9.

You are planning a party. Your friend tells you how much she paid for five party grab bags. How much will it cost you to buy eight of the grab bags for your party?

 a. \$31.50 c. \$45.50 b. \$140.00 d. \$28.00

Tell whether the ratios form a proportion.

1.

2.

Graph the line that passes through the two points. Then find the slope of the line.

3.

(0, 0), (2, 2)

4.

(6, 3), (–2, –1)

5.

What is the slope of the ski hill?

Tell whether x and y show direct variation.  Explain your reasoning. If so, find k.

6.

7.

8.

9.

The table shows your earnings y for x hours of work. Tell whether x and y show direct variation.
 x 2 5 8 11 y \$17.00 \$42.50 \$68.00 \$93.50