Question

Which quadratic function best fits this data?

x y
1 32
2 78
3 178
4 326
5 390
6 337
A) y=11.41x2+154.42x−143.9
B) y=−11.41x2+154.42x−143.9
C)y=11.41x2+154.42x+143.9
D)y=−11.41x2+154.42x+143.9

Answer 1

Correct answer is B

y=-11.41x^2+154.42x-143.9

Explanation:

Answer 2

B.
`y=-11.41x^2+154.42x-143.9`

Explanation:

The table for the data is given by,

x y

1 32

2 78

3 178

4 326

5 390

6 337

Using the regression calculator, we see that,

The quadratic equation representing the data is
`y=-11.41x^2+154.42x-143.9`.

So, option B is correct.