Answer:

Step-by-step explanation:
The definition of derivative states that:

Then:



A constant function is a zero-order polynomial. The domain of any real polynomial is
. Then, the domain of the function is:

Answer:
B
Step-by-step explanation:
The answer is b.
Answer: Vertical line x = 1
<u>Step-by-step explanation:</u>
(1, 1) (1, 2) (1, 3) (1, 4)
Notice that the x-value for each coordinate is 1.
The line is a vertical line (up & down) through x = 1