Answer:
Yes, the graph is a function.
Vertical line test proves so.
44 inches.
All you have to do is find out what 10% of 40 is then add it back to 40. In the case of finding 10% of something you just “chop” of the back number (or move the decimal place forward) so 10% of 40 is 4. The. 40+4=44.
You can also multiply fractions to find the percent of a number but that is not necessary in this case.
Short method: multiply constants
Long mothod: expand it
Answer: 42
The decimal for this would be 7.575
Hope this helped :)
