Algebra Formula??

Question

write equation in slope intercept form (y=mx+b)
1. passes through (-1/3,2) and (-3,0)

Answer 1

first minus second => change of 2 in y gives charge of 2 2/3 in x, so 6 in y would be 8 in x, 3 in y => 4 in x

4y = 3x + 9

which works for both points