Question 911319
{{{y = (5/2)x - 1}}} P(0,-1) and (2,4) on this line.  Plot and connect with a   Line
{{{drawing(300,300,   -6, 6, -6, 6, grid(1), 
circle(0, -1,0.2),
circle(2, 4,0.2),
circle(0,0,0.2),
circle(0,0,0.2),

graph( 300, 300, -6, 6, -6, 6,0,2.5x-1 ))}}}