The height of a ball in feet is modeled by f(x) = 16x^2 +72x. Where x is the time is seconds after it is hit vertex:

Axis of symmetry: x =

When a the ball at its highest

how high

how long was it in the air​

Pranza plotted point a in the coordinate plane below.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?