Question 863791
Standard form ax + by = c<P>
When given a point (x1,y1) and the slope (m), start with the point slope form:<P>
y-y1 = m(x-x1) ---> y - 0 = 5(x-4)<P>
y = 5x - 20<P>
5x -y = 20 is the standard form with a=5, b=-1 and c=20.