Digital PSAT Math Practice Question 99: Answer and Explanation

Question: 99

What choice most closely approximates the slope of the best-fit line of the graph above?

  • A.
  • B.
  • C.
  • D.

Correct Answer: B

Explanation:

(B) We can rule out choice (A) because the slope is clearly positive. Use the slope formula:

Plug in the values for the approximate endpoints of the line of best fit to get:

The answer is choice (B).

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