Answer:
A
Step-by-step explanation:
the function for this graph is:

so the domain (the input AKA THE x values) is all the real numbers.
Answer:
1/5 × 40 = 8
the person's speed is 8 miles per hour
I believe the answer is B.
Answer:
The 2nd answer would be the correct option.
Step-by-step explanation:
Hope this helps:) Also can I have brainliest if possible:) It is ok if you can not.