Answer:
Its B. "x" is all real numbers. Happens in any case that the line is horizontal. Hope this helps!
Answer:
For Q. 17 I believe it's "the function has a minimum at -1" take this answer with a grain of salt but the other three seem to be true and I don't know how to solve this one so I'm assuming it's the false one.
Answer:

Step-by-step explanation:
1. You must analize the information given in the problem.
2. The first equation:
-
represents the number of copies of the home edition sold and
represents the number of copies of the business edition sold.
- A total of 745 copies were sold last week.
- Therefore, if you add the number of copies of the home edition sold and the number of copies of the business edition sold, you will obtain a total of 745 copies, which you can express as below:
3. The second equation:
- The cost of each version is:

- If the company earned a total of $29,668.75, you have:
