Correct answer only !

which quadratic function best fits this data?

(A) y = -9.16x² +73.04x + 183.3

Step-by-step explanation:

This is a calculator problem.  Insert the data and find the regression line of a quadratic function.  I don't have a scientific calculator so I used an online software program.

See the attachment for a snapshot of the results.  Notice that A, B, and C are reversed in this program.  A scientific calculator will give the complete equation (instead of A, B, and C).

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2