The function f is defined for all real numbers x by f(x) = ax^2 + bx + c, where a, b, and c are constants and a is negative, In the xy-plane, the x-coordinate of the vertex of the parabola y = f(x) is -1. If t is a number for which f(t) > f(0), which of the following must be true? -2 f(1) I only II only I and III only II and III only I, II, and III
Show transcribed image textThe function f is defined for all real numbers x by f(x) = ax^2 + bx + c, where a, b, and c are constants and a is negative, In the xy-plane, the x-coordinate of the vertex of the parabola y = f(x) is -1. If t is a number for which f(t) > f(0), which of the following must be true? -2
