Question 920031
y = 8x – 10  P(1,-2) and P(0,-10) on this line.  Plot and connect with line Green)
 y = –4x + 20 P(5,0) and P(0,20) on this line.  Plot and connect with line (Blue)
P(2.5, 10) the point of intersection
{{{drawing(300,300,  -6,6,-25,25,   
 grid(1),
circle(1,-2, 0.2),
circle(0,20,0.2),
circle(5, 0,0.2),
circle(0,-10,0.2),
circle(2.5,10,0.2),
graph( 300, 300, -6,6,-25,25,0,8x-10, -4x + 20))}}}