1. An arrow is shot from the top of a platform. The path of the arrow can be modelled by the relation h = -0.005(t - 26)2 + 5, where h is the height of the arrow in metres and
f is the time in seconds after the arrow was shot.

(a) State the vertex of the parabola.

(c) How long will it take the arrow to reach
its maximum height?

(d) What is the maximum height of the arrow?

(e) Calculate the height after 10 seconds​