The pair of points (6,y) and (10,-1) lies on a line with slope 1/4. What is the value of y?

A. -5
B. -2
C. 2
D. 5

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

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

2 answers

(-1 - y)/(10-6) = 1/4

(-3-2)/(4-4) heavens to mergetroid !

(10-13)/(17-12) = -5/3 ?? I do not think so, try the others
i think is b but i am not sure
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