What are the coordinates of side HI? A (-8,1) and (-4,-3)
B (-4,7) and (-2,5)
C (1,-8) and (-3,-4)
D (7,-4) and (5,-2)

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