SOLUTION: Indicate yes or no if the following are functions? 1. y=x^3 2. y=x^2-1 3. y=5 4. y=x^4

Algebra ->  Functions -> SOLUTION: Indicate yes or no if the following are functions? 1. y=x^3 2. y=x^2-1 3. y=5 4. y=x^4      Log On


   

Question 111422: Indicate yes or no if the following are functions?
1. y=x^3
2. y=x^2-1
3. y=5
4. y=x^4
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
If you graph all of these equations, you will notice that none of them fail the vertical line test. So that means they are all functions.