Aline of best fit predicts that when x equals 30, y will equal 34.215, but y actually equals 32. what is the residual in this case?
a. -2.215
b. 2.215
c. 4.215
d. -4.215

A. - 2.215

Step-by-step explanation:

•A residual is the difference between the actual value and the predicted value in a regression model. It represents the vertical distance from the actual point to the point on the regression line.

Hence, the residual in this case = -2.215

your answer is the last one

step-by-step explanation:

divide the length of a'c' by the length of ac to get a scale factor of two

& then reflect vertically (over the y-axis)

so your answer is dilation by a scale factor of 2 followed by reflection over the y-axis