Question

find the rate of change of the graph below. we will use the coordinate points (1,80) and (2,160) change in x: 2 - 1 = 1 change in y: - = rate of change:

Explanation:

Step1: Calculate change in y

We subtract the y - values of the two points. Using the points (1,80) and (2,160), the change in y is $160 - 80=80$.

Step2: Calculate rate of change

The rate of change (slope) is given by $\frac{\text{change in }y}{\text{change in }x}$. Since change in x is 1 and change in y is 80, the rate of change is $\frac{80}{1}=80$.

Answer:

80