Question 925641
x-y=-1
or
y = x + 1,  P(0,1)  and (2,3) on this line.  Plot and connect with a line
{{{drawing(300,300,   -6, 6, -6, 6, grid(1), 
circle(0, 1,0.3),
circle(2, 3,0.3),
circle(-1,0,0.3),
graph( 300, 300, -6, 6, -6, 6,0, x+1) )}}}