Question

What is the rate of change of this function?

Answer 1

21/4

Explanation:

Rate of change also means slope.

Pick any two points, for example (8,167) and (12, 188)

Now use the formula y2-y1/x2 - x1 to find slope

188 - 167/ 12 - 8

21/4

The rate of change is 21/4, note you would NOT convert the fraction into to a decimal until your teacher specifies you to.

Answer 2

The rate of change is the same as “change in y/change in x (Slope).”

21/4