I use a website called desmos.com when I need to graph a function. Heres a picture of what it should look like.
For

, we have

So for

to be continuous at

, we require that the limit as

is equal to 4.
This should be the answer.
Answer:

Step-by-step explanation:
as with all functions f(t), the average rate of change on [a.b] is

Answer:
1:52
Step-by-step explanation:
The clock reads 1:45 so simply add 7 minutes to that