The Department of Transportation's budget for pedestrian and bicycle programs in millions of dollars for selected years

Question:

The Department of Transportation's budget for pedestrian and bicycle programs in millions of dollars for selected years is given in the table.image


(a) Determine a quadratic function B whose vertex is (2009, 1200) and whose graph passes through the point (2015, 840). Write the expression for B(x) in vertex form. 


(b) Use B(x) to determine when the budget was $710 million.

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