Question Use a graphing calculator or other technology to answer the question. Which quadratic regression equation best fits the data set?

Responses yˆ=0.728x^2−20.213x+179.246 yˆ=0.728x^2+20.213x+179.246 yˆ=179.246x^2−20.213x+0.728 yˆ=0.728x^2+0.564x+179.246

x y 

4 109

6 88

9 52

15 42

18 50

21 78

23 98