Answer:

Step-by-step explanation:
The function is given.

To find : 
The input for the function f(x) is (a + 1).
Replace x with (a + 1).

Expand brackets.

Simplifying.

Answer:
y = x + 2
If you use y = x, it will become in the direction of that line. I am assuming 1 block = 1 unit of measurement, so y = x + 2.
Answer:
2 hours and 15 minutes
Step-by-step explanation: