Question

6. I need help

Which kind of function best models the data in the table? Graph the data and write an equation to model the data.


x y

0 -2

1 -3

2 -4

3 -5

4 -6


A. quadratic; y = x2 – 2

B. exponential; y = 3x – 2

C. linear; y = x – 2

D. linear; y = –x – 2

Answer 1

D. linear; y = –x – 2

Explanation:

Let

A (0,-2) B (1,-3) C (2,-4) D ( 3,-5) E (4,-6)

using a graph tool

see the attached figure N 1

case a) exponential

see the attached figure N 2

case b) quadratic

see the attached figure N 3

case c) linear

see the attached figure N 4

case d) linear

see the attached figure N 5

therefore

the answer is

the case c) linear