Question

the equation for the line of best fit is y = -2x + 49. according to the equation, which of these statements is true? a swimmer who has been on the team for 2 years would likely have a best time of about 49 seconds. a swimmer who just joined the team would likely have a best time of about 49 seconds.

Explanation:

Step1: Identify the variable

Let $x$ be years on the team.

Step2: Analyze for 2 - year swimmer

When $x = 2$, $y=-2\times2 + 49=45$ seconds.

Step3: Analyze for new - joiner

When $x = 0$ (just joined, 0 years on team), $y=-2\times0+49 = 49$ seconds.

Answer:

A swimmer who just joined the team would likely have a best time of about 49 seconds.