Answer:
11 + x = 28
Step-by-step explanation:
The number of books they bought must add to 28.
I found the missing graphs but I only attached the correct graph that answers the above question.
I also made notes in the image. Pls. see attachment.
Answer:
-69
Step-by-step explanation:
If he is below sea level it would be negative so -86+17=-69
The domain is the set of all point where you can evaluate the function.
As you can see, the first piece is defined from -infinity to 2 (included).
The second piece is defined from 2 to 6 (excluded).
The third piece is defined from 6 (excluded) to +infinity.
So, the domain of the function is composed by all the real numbers which are not 6:

As for the range, it is the set of all values taken by the function. We can see that the first piece spans the y axis from 0 to infinity.
The second piece is constantly equal to 2, so it adds nothing.
The third piece spans the y axis from -2 to -infinity, so the range is
