You were not driving for 12 hours.
<em><u>Explanation</u></em>
Distance to the vacation spot is 1500 miles and you estimate that you drove an average speed of 50 mph.
<u>Relationship between distance, speed and time</u> is.......

So, the <u>number of hours you drove</u> 
Given that, including rest stops it’s takes you 42 hours to get to the vacation spot.
Thus, the number of hours you were not driving 
The second T-chart which would be
X | Y
-2. 10
-1. 5
0. 0
1. 5
2. 10
Answer:
if x=-1 then its is NOT in the domain of h.
Step-by-step explanation:
Domain is the set of values for which the function is defined.
we are given the function
h(x) = x + 1 / x^2 + 2x + 1
h(x) = x+1 /x^2+x+x+1
h(x) = x+1/x(x+1)+1(x+1)
h(x) = x+1/(x+1)(x+1)
h(x) = x+1/(x+1)^2
So, the function h(x) is defined when x ≠ -1
Its is not defined when x=-1
So, if x=-1 then its is NOT in the domain of h.
What does part a mean i dont understand