Question

Kiley gathered the data in the table. She found the approximate line of best fit to be y = 1.6x – 4.

Answer 1

Answer:

–1.8

Step-by-step explanation:

A residual is the distance between an observed (actual) point and a predicted value.  To make the prediction, we substitute 3 in for x in our line of best fit:

y = 1.6(3) - 4 = 4.8 - 4 = 0.8

To find the residual, we subtract the actual value and the predicted value:

-1-0.8 = -1.8

Answer 2

Residual = observed - predicted
Residual = -1 - (1.6 * 3-4)
residual = -1 - 0.8
residual = -1.8
Hope that helps! :)