You can 
put this solution on YOUR website!   
Hi,
  finding the intercepts for the line
y = 4x + 12   |crosses x-axis when y = 0
0 = 4x + 12
-12 = 4x
 -3 = x   x-intercept is Pt(-3,0)
y = 4x + 12     |crosses y-axis when x = 0
y = 4*0 + 12
y = 12    y-intercept is Pt(0,12)
Graph of y = 4x +12.  Note where the line crosses the x-axis and y-axis
