Select each of the following statements that is always true whenever you are graphing a function. A function can have no more than two vertical asymptotes. ( If a function has horizontal asymptotes as a -> co and as T -> -co, then those asymptotes must be the same line. If a function has a local minimum at a point, then its derivative must be zero at that point. If the second derivative is negative on an interval, then the function must be concave down on that interval. If a function has a discontinuity at a point, then it cannot have a global (absolute) maximum at that point. ructors) A function can have no more than three local minima. ion of A function can have no more than two horizontal asymptotes. ies If the derivative is positive on an interval, then the function must be increasing on that interval. If a function is continuous, then it must have a global (absolute) minimum on its domain