Question

Estimate the line of best fit using two points on the line.

Answer 1

Answer:

A. y = -8x + 80

Explanation:

Take two points from the best fit line (2, 64), (6, 32)

Find the slope:

$\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} \ \ where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points$

$\sf \rightarrow slope \ (m) : \dfrac{32-64}{6-2} = -8$

Find the equation:

$\sf y - y_1 =m(x - x_1 )$

$\sf \rightarrow y- 64 = -8(x - 2)$

$\sf \rightarrow y = -8x + 16 + 64$

$\sf \rightarrow y = -8x +80$

Answer 2

The abs were pretty bad and