describe what the graph of interval [-4,10] look like?

Answer 1

-•-+-+-+-0-+-+-+-+-5-+-+-+-+-•-+-+-+
The interval notation uses square brackets [] to enclose the lower and upper limits when the limits are included in the interval. Parentheses () are used if the limits are excluded.
In this case, the limits of -4 and 10 are included, so draw a thick filled circle to represent the limits. Draw a thick line between the limits.
If the limits are excluded, a hollow circle (∘) will be used instead of •.

Also, the + signs on the line are used as tics for the number axis. In practice, we only put tics at wider intervals, like 5 or 10, depending on the interval in question.

Answer 2

it will look like this
_[____________________________]
-4 0 10