Answer:

Step-by-step explanation:

Do you remembered me? Yes I’ll help too.
Answer:
and
Step-by-step explanation:
Note that if
then 
Functions
do not have vertical asymptotes at all.
Vertical asymptotes have functions
Functions
and
have the same vertical asymptotes (when
).
Functions
and
have the same vertical asymptotes (when
). See attached diagram
The first thing we must know in this case is that the distance is equal to the speed for time.
We have then:
For Chris:
d1 = 40 * t
For Amy:
d2 = 60 * (t-2)
The distance between both will be given by the hypotenuse of the rectangle triangle:
300 = root ((40 * t) ^ 2 + (60 * (t-2)) ^ 2)
Answer:
300 = root ((40 * t) ^ 2 + (60 * (t-2)) ^ 2)
option 3