Help with 3 math questions, thanks

1. Jesse kicks a soccer ball off the ground and in the air with an initial velocity of 29 feet per second. Using the formula H(t) = -16t2 + vt + s, what is the maximum height the soccer ball reaches?
13.1 feet
13.5 feet
13.8 feet
14.2 feet


2. Fill in the missing term so that the quadratic equation has a graph that opens up, with a vertex of
(– 2, – 16), and x intercepts at x = -6 and x = 2. (Do not include the negative sign in your answer.)

y = x2 + 4x - ___


3. For y = x2 - 4x + 3,
Determine if the parabola opens up or down.
State if the vertex will be a maximum or minimum.
Find the vertex.
Find the x-intercepts.
Describe the graph of the equation.

Thanks

I'm not doing your homework for you.

If you have a problem doing these, then dear god you suck at math.