Create a function to model the height of a firework when shot in the air. explain whether the function will have a maximum or a minimum value.

The function would be h(t)=-16t²+v₀t+0, where v₀ is the initial velocity of the firework.

0 is the initial height, since you cannot hold one in your hand and safely set it off.

This will have a maximum; the firework will reach a highest point and fall back down.  This is also evident from the equation; the negative in front of t² flips the parabola upside down, which gives it a maximum.

Ithink number to is 1 inch=5 miles