Name:    Quiz 3.1-3.3

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

Write an equation of the line in slope-intercept form.

1.

 a. y x c. y x 5 b. y x d. y x 5

2.

 a. y x 3 c. y x 3 b. y x 3 d. y x 3

Write an equation of the line with the given slope that passes through the given point.

3.

m
 a. y x 4 c. y x 3 b. y x 3 d. y x

4.

m ; (8, 25)
 a. c. b. d.

5.

m 5; (–1, –3)
 a. c. b. d.

Write an equation of the line that passes through the points.

6.

(–2, –3), (4, 21)
 a. c. b. d. 5x 7

7.

(2, 6), (4, 12)
 a. c. b. d. 7x 8

8.

(–15, 9), (–5, 7)
 a. c. b. x d.

9.

(–6, 5), (6, –5)
 a. c. x b. d. 3x 23

10.

(3, –2), (9, 6)
 a. c. b. x d. 5x 17

1.

For a field trip, a bus company charges \$50 plus a fee of \$3.50 per student. Write an equation that represents the cost y of the field trip for x students.

2.

Describe how to verify that a line passes through a given point.

3.

A \$24 shirt is on sale for \$18. A \$56 pair of shoes is on sale for \$42.
a.   Write an equation that represents the sale price y of an item that costs x dollars.
b.   What percent is the discount?