Is the following scenario a function, and explain why or why not. The graph of the speed S(t) of a volleyball (y-axis) based on time in seconds, t, (x-axis) after the player serves. For example, “The ball is going 3mph after 1 second”

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126