Question

Maria gathered the data in the table. She finds the line of best fit to be y = 2.78x – 4.4.

What is the residual value when x = 4?

Answer 1

The correct answer would be C.0.58

You plug 4 into the line of best fit and get 6.72. This is your predicted value, but the residual is the difference between the actual value and predicted. So you subtract: 7.3-6.72=0.58.

Answer 2

Y=2.78(4)-4.4
Y=11.12-4.4
Y=6.72