Okay so i have having a little problem with slope- intercept form when you have two points. ?

To find the slope of the line you have to do change in y over the change in x. I will be using the example (3,6) and (1,4). So if you find the change in y over the change in x you have 2/2. The slope would be 1. and if you have slope intercept form (y=mx+b) you get y=1x+b. Now all you have to find is b. Substitute in any of the points given and you have 4=1+b. Therefore b = 3. So your full equation is: y=x+3

2x+18+5x-9

2x+5x18-9

7x+9

7. 7

x= 1.4

hope it helps