Intercept=[tex] \frac{x1-x2}{2} , \frac{y1=y2}{2} [/tex]
x1=-1 x2=1
y1=5 y2=11
[tex] \frac{-1-1}{2}, \frac{5-11}{2} [/tex]
[tex]\frac{-2}{2}, \frac{-6}{2}[/tex]
=-1,-3
Slope=[tex] \frac{y2-y1}{x2-x1} [/tex]
=[tex] \frac{11-5}{1-(-1)} [/tex]
=[tex] \frac{6}{2} [/tex]
=3
