Answer:
Explanation:
Equation in which to find the slope:
(slope)
![m = (y_2 - y_1)/(x_2 - x_1)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/gjvq8ugonz7wbfcjxpwzkf808xsbjwfyvh.png)
Let:
![(x_1 , y_1) = (9 , -4)\\(x_2 , y_2) = (9 , 5)](https://img.qammunity.org/2021/formulas/mathematics/high-school/4qyo1vllj4s0mbgnl5nz8z7bw5jp8xtlix.png)
Plug in the corresponding numbers to the corresponding variables:
![m = (5 - (-4))/(9 - 9)](https://img.qammunity.org/2021/formulas/mathematics/high-school/eu0u6xlmgfx0xjwcu1lqvido6mcmxt4878.png)
Simplify. First solve the numerator and denominators, then divide:
![m = (5 - (-4))/( 9 - 9) \\m = (5 + 4)/(9 - 9) \\m = (9)/(0)](https://img.qammunity.org/2021/formulas/mathematics/high-school/159xrek7cgmkssphvkry2lft0yq3ug7cm5.png)
Because a fraction cannot be out of 0, your answer will be .