I'd use
(4-1)/(1+1) = (3+1)/(3+1)
Don't know why all the choices have a -2 in them, since none of the points contains a -2.
sorry I wrote problem wrong:
Which equation would you use to find out if the two lines in the graph are parallel:(a)(1,4) and (-1,1) (b) (3,3) and (-1,-1)
a. 4-1/-2-1 = 3-1/3-1
b. 4-1/-2-1 = 3-(-1)/3-1
c. 4-1/1-(-2)= 3-(-1)/3-(-1)
d. 1-(-2)/4-1 = 3-1/3-1
2 answers
Because Bubbles wrote it wrong one of the points is supposed to be (-2,1). Hope that helps! :D