Practice problem
Above is the graph of function f(x)=x3−4xf(x)=x^{3}-4xf(x)=x3−4x. On what interval is the graph increasing?
(−∞,−2) and (0,2)(-\infty, -2) \text{ and } (0,2)(−∞,−2) and (0,2)
(−∞,−1.155) and (1.155,∞)(-\infty, -1.155) \text{ and } (1.155, \infty)(−∞,−1.155) and (1.155,∞)
(−2,0) and (2,∞)(-2,0) \text{ and } (2, \infty)(−2,0) and (2,∞)
(−1.155,1.155)(-1.155, 1.155)(−1.155,1.155)
Type a concept, like “slope” or “photosynthesis”.
