I've followed my notes and examples in my text book as well as online. My reasoning for the answers I came up with seem to make sense by looking at the graph, but I must be doing something wrong.
I've convinced myself several times and have tried DNE,0,1, and 2 for each one.. I cannot figure it out.
It's a fairly basic problem.. so I took screenshots of the question with my answers and the graph (via wolfram).
Can someone please help explain? Thanks!