Question

Some values of a linear function are shown in this table:

What is the rate of change of this function?

X y
2 11
3 16.5
4 22
5 27.5

Answer 1

9514 1404 393

Answer:

5.5

Explanation:

The rate of change is given by the slope formula:

m = (y2 -y1)/(x2 -x1)

m = (16.5 -11)/(3 -2) = 5.5/1

m = 5.5

The rate of change of this function is 5.5.