Question

Functions Unit Test
7 of 157 of 15 Items














Question
Use the image to answer the question.

A coordinate plane shows quadrant 4 with the x-axis, labeled as minutes, ranging from 0 to 6 in increments of 1 and y-axis, labeled as elevation in feet, ranging from 0 to negative 110 in decrements of 10. A ray with arrow at the bottom end points downward from the origin. The coordinates that it passes through are left parenthesis 0 comma 0 right parenthesis, left parenthesis 3 comma negative 60 right parenthesis, and left parenthesis 5 comma negative 100 right parenthesis.

The graph shows the elevation of a deep-sea diver in relation to minutes passed. Using any two points on the graph, what is the rate of change in the diver’s elevation?

(1 point)
feet per minute

Answer 1

The rate of change in the diver's elevation can be calculated as the change in elevation divided by the change in time (minutes).

Using the points (3, -60) and (5, -100), the change in elevation is -100 - (-60) = -40 feet.
The change in time is 5 - 3 = 2 minutes.

Therefore, the rate of change in the diver's elevation is -40 feet / 2 minutes = -20 feet per minute.