Question 243341
The line formula is:
Y=mX+b where m=slope & b=the Y intercept.
(-7,-2)and (-1,-3)
Slope=(y2-y1)/(x2-x1)=(-3+2)/(-1+7)=-1/6 for the slope.
Now replace X & Y in the line formula & solve for b the Y intercept.
-2=-1/6*-7+b
-2=7/6+b
b=-2-7/6
b=-12/6-7/6
b=-19/6 this is the Y intercept.
y=-x/6-19/6
{{{ graph( 300, 200, -8, 5, -10, 10, -x/6 -19/6) }}} (graph 300x200 pixels, x from -8 to 5, y from -10 to 10, -x/6 -19/6).