Can someone tell me if i did this right? if it's wrong can you tell me how to do it step by step?

Hi there!

So first off, here are little definitions you need to know in order to be able to answer your question :

Constant means that the rates of change are the same.

Variable means that the rates of change are different.

But from what I can see, you don't even need those definitions because you got both answers right!

Continue your great work! If there's anything just let me know! :)