Which shows the correct substitution of the values a, b, and c from the equation 2 *+ ? - 4 into the quadratic formula?
Quadratic formula: x
-0.40
2 a
Ox-(-1):V-1)-4(1)(-4)
2(1)
-11V1?-4-1)(-4)
2(-1)
- 1 + a)? -46-12-2)
21-1)
x --(-1)/(-1). - 4(1)( - 2)
2(1)

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