Posted by **Vanessa** on Wednesday, November 2, 2011 at 9:24pm.

The local zoo keeps track of how many dragonflies are breeding in their insect exhibit each day.

Day: 1, 2, 3, 4, 5

Dragonflies: 9, 18, 36, 72, 144

It's exponential growth.

A. Write an equation for the function that models the data.

B. Use your equation to determine the # of dragonflies that will be breeding after 9 days

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