Re: uggg...........math.............
First you need to create a table, take 3 values,
2 (23)=5
1 (13)=1
3 (33)=0
So when x is 2 y is 5, when x is 1 y is 1 and when x is 3 y is 0
From the equation, you can tell the gradient is 1 and the line crosses the y axis at 3
