Non Linear functions question

Question

The equation y =16t^2 + 30 gives the heights y (in feet), of a dropped container, where t is the time (in seconds) since the container is dropped. What is the initial height of the container (just before it is dropped)?

Answer 1

when t=0 then

plug that value in eq

y= 16t^2+ 30

y= 0+30

y=30

Answer 2

The initial height is at t = 0.

Substitute 0 for t and solve for h(0).