Question

A scatter plot is shown on the coordinate plane.

scatter plot with points at 1 comma 3, 2 comma 5, 3 comma 4, 3 comma 7, 4 comma 9, 5 comma 5, 6 comma 7, and 9 comma 7

Which two points would a line of fit go through to best fit the data?

(1, 3) and (9, 7)
(1, 3) and (4, 9)
(2, 5) and (6, 7)
(2, 5) and (5, 5)

Answer 1

Plot the points on the graphing calculator. Then generate a linear regression equation. That equation is

y = .4039x + 4.2089

The two closest points to this line are

(2, 5) and (6, 7).

.4039(2) + 4.2089 = 5.0167

.4039(6) + 4.2089 = 6.6323