Question

Describe what the graph of interval [-4,10] looks like.

Answer 1

how can no one know this?

Answer 2

you will need to be more specific. All this means is some unknown function is continuous between values of -4 to 10.

Answer 3

it just wants a description of what ity looks like

Answer 4

well that's what I can give you. Without a function, the interval is just an interval. Some unknown function is continuous between those x-values. It could be wiggly, or perfectly straight.