Question 1081910
The graph of the line crosses the x axis when y = 0
Plug y = 0 into the equation and isolate x


4x+5y = 12
4x+5*0 = 12
4x+0 = 12
4x = 12
4x/4 = 12/4
x = 3


When we plugged in y = 0 and solved for x, we got x = 3. 
So those x and y values pair up to get (x,y) = (3,0)


Therefore, the x intercept is (3,0) meaning that the graph crosses the x axis at 3.