Question 276493
m= 1; (2,-1)
Y=mX+b IS THE LINE FORMULA WHERE m= SLOPE & b=THE Y INTERCEPT.
-1=1*2+b
-1=2+b
b=-1-2
b=-3 the Y intercept.
Y=X-3 is the line equation.
{{{ graph( 300, 200, -6, 5, -10, 10, x -3) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, x -3).