MATHEMATICS · Single correct · AP · Calculus AB · Limits and Continuity · Limits and Continuity
Problem
Consider f(x)=x3−4x on the interval [1,3]. For which of the following values of k is the equation f(x)=k guaranteed to have at least one solution in (1,3)?
(a) k=−3
(b) k=15
(c) k=−2
(d) k=−5