Question

The rate of change is constant in each table. Find the rate of change. Explain what the rate of change means for the situation

Time (days):3,4,5,6 cost($):75,100,125,150

Answer 1

The rate of change is 25 and that means the cost per day is $25

Explanation:

Since we have a constant rate of change, we can select any two points, apply the slope formula

The slope formula is;

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

(x1,y1) = (3,75)

(x2,y2) = (6,150)

m = (150-75)/(6-3) = 75/3 = 25

What the rate of change means here is that the cost per day is $25