Answer:
undefined
Step-by-step explanation:
The equation for slope is:
[tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1}} [/tex]
We can plug in the given coordinates into the equation:
[tex]\frac{-7-(-1)}{-5-(-5)} =\frac{-7+1}{-5+5} =\frac{-6}{0} [/tex]
The slope is undefined