Which ones do not represent a function and which ones do represent a function and why?

7 is not because a couple x values were repeated

8 is not because the x value -2 was used for two y values

9 is not because a couple x values were used for more than one y value

10 is a function is x alue is only used once

hope this helps :)

x^6

step-by-step explanation:

this is correct because:

x-6=0

0*x=0

so

x^6

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation: