For the quadratic function

MATHEMATICS · Single correct · AP · AP Precalculus · Polynomial and Rational Functions · Polynomial and Rational Functions

Problem

For the quadratic function f(x)=ax2+3xf(x)=ax^{2}+3x, determine the value of aa so that the average rate of change of ff on the interval [1,4][1,4] is 1010. (a) 78\dfrac{7}{8} (b) 85\dfrac{8}{5} (c) 75\dfrac{7}{5} (d) 4115\dfrac{41}{15}

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