Question

Jace gathered the data in the table. He found the approximate line of best fit to be y = –0.7x + 2.36. What is the residual value when x = 5? –3.14 –0.86 0.86 3.14

Answer 1

I think the other person miswrote the answer on accident, the right answer is -0.86 and NOT 0.86.

Answer 2

The answer
the table is 

x   0   1  4  5   7
y   3   1  0 -2  -2

the approximate line of best fit to be y = –0.7x + 2.36
so when the value of x=5, the residual value is 

y = –0.7(5) + 2.36  =  -1.14 this is the actual value
the predicted value is -2 (for x=5)

and residual value formula is  RS =  y actual value - y predicted value

so RS = -1.14 - (-2) = 0.86