Question 322747
(-1, 4) and (-7, -5)?
Y=-mX+b where m=slope & b=the Y intercept.
m=(Y2-Y1)/(X2-X1)
m=(-5-4)/(-7+1)
m=-9/-6
m=3/2 ans for the slope.
4=3/2*-1+b
4=-3/2+b
b=4+3/2
b=8/2+3/2
b=11/2 ans. for the Y intercept.
Y=3X/2+11/2
{{{ graph( 300, 200, -8, 5, -10, 10, 3x/2 +11/2) }}} (graph 300x200 pixels, x from -8 to 5, y from -10 to 10, 3x/2 +11/2).