Two missiles, a and b, are shot from two different launch pads. the path of missile a can be represented by the quadratic function a(t) = −(t − 11)2 + 115, where height, a(t), is in meters, and time, t, is in seconds. the path of missile b is shown below

It is required to find the highest altitude (in meters) .

For the given quadratic function ⇒⇒ A(t) = −(t − 11)² + 115
From the attached figure which represents the graph of the given function
the maximum will be at point (11,115)

So, the highest altitude (in meters) = 115 meter

and it will reach it at t = 11 seconds