Which quadratic regression equation best fits the data set?

x y

0 31

1 29

2 28

4 22

6 19

10 11

11 8

Answers:

yˆ=31.179x^2+2.051x-0.002

yˆ=-0.002x^2-2.051x-31.179

yˆ=-0.002x^2-2.051x+31.179

yˆ=31.179x^2-2.051x-0.002

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