What would be the interval of 19 -34?

Answer 1

53

Answer 2

It is not clear whether the "-" sign before the 34 stands for "to" or "negative".

19 to 34 is the interval consisting of all numbers between 19 and 34.

19 to -34 is the interval that would normally be written as -34 to 19 and consists of all numbers from -34 to +19.

Whether or not the end points are included depends on the interval being closed, open or semi-closed.