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

X Y

0 0

1 - 2

2 0

3 6

4 16

1. exponential; y = 2•4x

2. quadratic; y = 2x2 + 4x - 3

3. linear; y = - 2x

4. quadratic; y = 2x2 - 4x

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