Answer:
x = - 7
A
Step-by-step explanation:
An undefined slope means that the line is vertical. All values of every point on the line are x = -7 so the following are all on the line.
-7,0
-7,22
-7, - 22
-7, - 4444
-7, + 33333
All of these are on the line of
x = - 7
