9000010605 Level: AIdentify a function which is decreasing on \((-\infty ,1)\).\(f(x) = -x^{3}\)\(f(x) = -x^{2}\)\(f(x) = x^{3}\)\(f(x) = -x^{4}\)\(f(x)= x^{-2}\)\(f(x) = x^{2}\)
9000010606 Level: AIdentify a function which is increasing on \((-1,3)\).\(f(x) = (x + 2)^{2}\)\(f(x) = x^{2} + x\)\(f(x) = x^{2} - x\)\(f(x) = (x - 2)^{2}\)\(f(x) = -x^{3}\)\(f(x) = x^{2} + 1\)
9000010607 Level: AIdentify a function which is one-to-one on the interval \([ - 2,2] \).\(f(x) = x^{3} - 2\)\(f(x) = x^{2} - 2\)\(f(x) = -x^{2} + 2\)\(f(x) = x^{-2} + 2\)\(f(x) = \frac{1} {x} - 2\)\(f(x) = x^{4}\)