SOLUTION: Please check if A is the right answer here. Which of the following functions best represents the data using a quadratic model? Table: https://s21.postimg.org/nsovn4tvr/shoes.png

Question 1057269: Please check if A is the right answer here.
Which of the following functions best represents the data using a quadratic model? Table: https://s21.postimg.org/nsovn4tvr/shoes.png
A.) f(x) = 64.36x + 1407.14 -- my choice
B.) f(x) = 64.36x + 956.64
C.)f(x) = -3.07x2 + 88.93x + 1370.29
D.) f(x) = -3.07x2 + 131.93x + 597.29
Thank you.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
It is C.
A and B are both linear models, so they can be excluded. Quadratic models are of the form y=ax^2+bx+c
This can be entered on a calculator with a quadratic model showing a very high R^2 of 0.98 with those coefficients.
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