Question

1.6.6 stepping stones
given a scatter plot and the corresponding line of best fit, determine the slope and y - intercept
m = - 0.18 and (0,3.92)
m = - 0.18 and (3.92,0)
m = 0.18 and (0,3.92)
m = 0.18 and (3.92,0)

Explanation:

Step1: Identify slope sign

The line of best - fit is decreasing from left to right, so the slope $m$ is negative. This eliminates the options with positive slopes ($m = 0.18$).

Step2: Recall y - intercept definition

The $y$-intercept is the point where the line crosses the $y$-axis. The $y$-axis is the line $x = 0$. So the $y$-intercept is of the form $(0,y)$.

Answer:

$m=-0.18$ and $(0,3.92)$