Question

1. What is the slope of the line that passes through the points (-2, 5) and (1, 4)?

A. -3
B. -2
C. -1/3
D. 1/3

2. A line has a slope -5/3. Through which two points could this line pass?
A. (12, 13) and (17, 10)
B. (16, 15) and (13, 10)
C. (0, 7) and (3, 10)
D. (11, 13) and (8, 18)

3. The pair of points (6,y) and (10,1) lies on a line with the slope 1/4. What is the value of y?
A. -5
B. -2
C. 2
D. 5

4. What is the slope of the line that passes through the points (4, 2) and (4, -3)?
A. -1
B. 0
C. 1
D. Undefined

5. A car is 500 miles from its destination after 2 hours and 410 miles from its destination after 3.5 hours. What is the rate of change?
A. 1.5 miles per hour
B. 60 miles per hour
C. 90 miles per hour
D. 135 miles per hour

Answer 1

(4-5)/(1+2) = -1/3
now you try some.

Answer 2

Can someone tell me if my answers are right and explain how you got each one thank you very much !

1. What is the slope of the line that passes through the points (-2, 5) and (1, 4)?

A. -3
B. -2
C. -1/3 **
D. 1/3

2. A line has a slope -5/3. Through which two points could this line pass?
A. (12, 13) and (17, 10)
B. (16, 15) and (13, 10)
C. (0, 7) and (3, 10)
D. (11, 13) and (8, 18) ***

3. The pair of points (6,y) and (10,1) lies on a line with the slope 1/4. What is the value of y?
A. -5
B. -2 **
C. 2
D. 5

4. What is the slope of the line that passes through the points (4, 2) and (4, -3)?
A. -1
B. 0
C. 1
D. Undefined ***