Question

1. which of the following could be the equation for the line of best fit? lets try that again y = 3x - 20 a y = 3x + 20 b y = -20 - 3x c y = -3x + 20 d

Explanation:

Step1: Identify slope sign

The line of best - fit is increasing, so the slope is positive. Eliminate options with negative slopes (C: $y=-20 - 3x$ and D: $y=-3x + 20$).

Step2: Identify y - intercept

The line of best - fit intersects the y - axis at a negative value. The y - intercept of the line is negative. Option B: $y = 3x+20$ has a positive y - intercept, so eliminate it. Option A: $y = 3x-20$ has a negative y - intercept and a positive slope.

Answer:

A. $y = 3x-20$