Question 1

x	y
0	1
1	22
2	33
3	22
4	1
5	6
6	13

Which quadratic equation fits the data in the table?

A) y = x² 4x + 1

B) y = x² 4x 1

C) y = x² 4x + 1

D) y = x + 4x + 1

Question 2

x	y
15	423
17	398
19	308
20	255
21	297
25	365
29	401

Use a graphing calculator or other technology to answer the question.

Which quadratic regression equation best fits the data set?

A) = 2.608x² 115.265x + 1568.065

B) = 2.608x² + 115.265x + 1568.065

C) = 1568.065x² 115.265x + 2.608

D) = 1568.065x² + 115.265x + 2.608

Question 3

x	y
3	3.45
5	6.9
6	8.79
8	12.91
10	17.48
12	22.49
15	30.85

What is the quadratic regression equation for the data set?

A) = 0.056x² + 1.278

B) = 0.056x² + 1.278x

C) = 0.056x² + 1.278x 0.886

D) = 0.056x² 1.278x 0.886