1. #36 is wrong: You used the wrong equation
2. #37 is OK now
3. #38 is wrong. As I mentioned in my previous post you have to determine the appropriate domain. From
Since you have to calculate those values for x that
That means is a function.
Definitely I won't do your homework. So show some work of your own and if there are some mistakes you'll get additional support....also i want solve questions from 39 to 42
What you labeled #36 is actually #37. Usually an equation of a function starts with "y = ...". So your result is slightly unfinished (but correct)
#39 is wrong.
Explanation:
#40 is OK
#41 is wrong. You only have to solve the given equation for y to judge wether the equation describes a function or not.
#42 is correct but incomplete. (Is this a function or not?)
Initially you are asked to find the domain of those equations which define a function. The domains are missing