Question

What is the range ? In this picture

Answer 1

Answer:

The range is the difference between the highest and lowest number

Answer 2

Answer:  {-2, 1, 2, 3}

You list the y coordinates of each point to form the range. The range is the set of all possible y values of a relation or function. Toss out any duplicates. The order of items in a set doesn't matter, but convention is to list the values from smallest to larger.

Extra info: The domain is {-4, -1, 1, 2, 3} which is the list of x coordinates of the points shown.