Solve the problem.A parabolic train track must pass through the points (1, 0), (0, 7), and (0, -7), where the units are kilometers. Find an equation for the train tracks in the form   

A. x =  (y - 0)2 - 1
B. x = - (y - 0)2 + 1
C. x =  (y - 0)2 + 1
D. x =  (y - 0)2 - 1


Answer: B

Mathematics

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