Answer:
The slope is [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
∵ The rule of the slope passing through 2 points is:
m = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
∵ The points are (7 , 8) and (-7 , 1)
∴ m = [tex]\frac{1-8}{-7-7}=\frac{-7}{-14}=\frac{1}{2}[/tex]