Solve the problem.
-Find the least squares line through the points (1, -4) and (2, 2).
A) y = 6x - 10
B) y = -2x - 10
C) y = -2x - 6
D) y = 6x - 6

Question

Quizplus · Accepted Answer

The least squares line, or the line of best fit, can be found using the formula for a linear regression line, y = mx + b, where m is the slope and b is the y-intercept. The slope (m) is calculated as (y2 - y1) / (x2 - x1) = (2 - (-4)) / (2 - 1) = 6. To find the y-intercept (b), we can use one of the points and the slope: -4 = 6(1) + b, solving for b gives b = -10. Thus, the equation is y = 6x - 10.

Solve the Problem. -Find the Least Squares Line Through the Points (1, -4)