PSAT Math Multiple-Choice Practice Question 816

Question: 816

The Asian carp has experienced a rapid growth by displacing other fish in the Mississippi River. A researcher gathered three yearly samples from a 500-meter length of the Upper Mississippi River to determine the population trend of the fish over a decade.

What is the approximate slope of the best-fit line of the data in the graph, expressed as

Correct Answer: A

Explanation:

(A) Some approximate points that would be on the best-fit line are (1990, 0) and (1996, 18). Calculate the approximate slope: , which comes closest to choice (A).

You can also visualize this by drawing the approximate best-fit line on the graph:

All content of site and practice tests © 2022 Jack.
Quick View

PSAT Practice Tests

More Information