Solve the problem.The data lists braking distances D in feet for cars traveling at x miles per hour on dry, level pavement. Find a function given by D(x) = ax2 that models these data. 

A. D(x) = x2
B. D(x) = x2
C. D(x) = 18x2
D. D(x) = 9x2

Answer: A

Mathematics

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