関連ワード:  can an exponential function be 0    can an exponential function ever be 0    can the base of an exponential function be 0    does an exponential function ever reach 0    will an exponential function ever reach 0    does an exponential function ever touch 0    why can t the base of an exponential function be 0    can b be 0 in an exponential function    can exponential function be zero