SSMENT ( changes saved An electrical circuit switches instantaneously from a 30 volt battery to a 87 volt battery 25 seconds after being turned on. Sketch on a sheet of paper a graph the battery voltage, V, against time, t. Then fill in the formulas below for the function represented by your graph. if t At what point or points is your function discontinuous? Answer: t = seconds . (if there is more than one point of discontinuity, separate them with commas) Input an expressio