it helps you because you can divide the bottom to the top or vice versa or you can divide x and y
The answer would be y=0.15x + 35 because 35 is like the base, the lowest he’ll pay, and then he’ll pay 0.15 which is 15% of the groups tips which is where the x comes in!
hope this helps!!
The second picture should be the correct graph or the one which has its blue on the bottom side.
3: m= 2, -3
4: x= -1, 5/2
5: x= -1, -3
6: x= 5/2, -4