Given:
The line containing the points (9,5) and (9,16).
Step-by-step explanation:
The rate of chage of line passes through point (x_1,y_1) and (x_2,y_2) is,
Determine the rate of change of line passes through line (9,5) and (9,16).
![\begin{gathered} m=(16-5)/(9-9) \\ =(11)/(0) \\ =\text{undefined} \end{gathered}]()
So answer is undefined.
Option A is correct.