What are the answers to 1 5 3 and 6 really aprreciate it!

1. y=3/4x-3    (just from a triangle from one point on the line to anotheron the line where both end at a point.
2. y=5/1x which is also y=5x    (basically subtract y^2-y^1/ x^2-x^1 ex. -2--7/5-4
3.y=2/3x-1/2
4.-3/-1 which is two negatives dividing which makes it positive. y=3x
5.cant see
6. Find slope first. y=3x then use point (1,1) move one left and 3 down. and the y intercept would be -2