Question

If a line contains the point (0, -1) and has a slope of 2, then which of the following points also lies on the line?

(2, 1)
(1, 1)
(0, 1)

Answer 1

(2,1)

Answer 2

no that is wrong sorry did not read it all

Answer 3

slope is rise over run. I.e. chang in y/ change in x. so if you add one to the x componet you would have to add 2 to the y componet

Answer 4

y= mx + b
-1 = 0 ( 2) +b
b = -1 ; therefore ...

Answer 5

(0,-1) + (1,2) would give you (1,1) which is one of the points you listed

Answer 6

thank u guys

Answer 7

no problem. just remember (change in y)/(change in x) = slope and try to find some multiple of that fraction