Question

Is the rate of change positive or negative?
negative
1
16
4
10
Batches,
Raspberries Left in Bucket (cups), y
Find and describe the rate of change of the function.
7
4
The rate of change is
It represents
?
in the amount of raspberries
in the bucket for each batch Iris makes.

Answer 1

Negative. Using the points (1, 16) and (4, 10) (or (4, 10) and (7, 4)):

slope = (10 − 16) / (4 − 1) = −6 / 3 = −2.

The rate of change is −2 cups per batch. It represents a decrease of 2 cups of raspberries in the bucket for each batch Iris makes.