To find the range subtract the lowest number from the biggest number. The range is the difference between the smallest and highest numbers in a list or set. This will help you to understand the concepts of finding the Range of a Function better.
As we saw in the previous example sometimes we can find the range of a function by just looking at its graph.
Remember to take the maximum value and subtract the minimum value. In 4 6 9 3 7 the lowest value is 3 and the highest is 9. To find it subtract the lowest number in the distribution from the highest. The Range of a Function is the set of all y values or outputs ie the set of all fx when it is defined.