Answer:
On a number line, negative numbers get smaller as we move to the left, whereas positive numbers get bigger as we move to the right. Hence,
To the right of 15 is -11, and to the right of 13 is -13.
Starting from 0 to the left, the sequence goes 1, 2, 3,..., and so on, decreasing as we move to the left of the number line.
Moving left, - 13 occurs before - 15; as a result, - 13 is situated on the number line to the right of - 15
Similar to how 11 comes before 13, 11 is situated on the number line to the right of 13 in relation to it.
As a result, on the number line, - 15 and - 13 are respectively to the right of - 13 and - 11.