For the first pic,question to the answer is 4/3x+110. For the second pic question 3 u r right its 16, for pic 3, question 4 the answer is 6/4x+40. Hint the last number not the one with the x is the point on the y intercept there should only be 1 on the y intercept. For the x its 2 points that meet in a corner and it's the rise over run.v Which is hoe many points up and across the points are from each other.
