find the y-intercept and x-intercept
2x+3y=12
3x-6y=72
The y intercept is when x = 0
so for example
2x+3y=12
2*0 + 3y = 12
3 y = 12
y = 4 is the y intercept
For the x intercept, y = 0
2 x + 0 = 12
x = 6
You should be able to do the second one.