The scatter plot represents the purchase prices and selling prices of x-ray machines made by five different manufacturers. which of the following points show errors of prediction or residuals?

answer choices :
points (14, 25) and (15, 25)
points (15, 25) and (18, 26)
points (14, 25) and (16, 25)
points (12, 24) and (18, 26)

As seen in the image, all of the prediction points are found on the line except for points (14,25) and (16,25). Therefore, these points contain errors in prediction.

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.