In order to find the maximum of the function, we have to find the roots of the first derivative.

This gives us the time at which the ball reaches its maximum height.
We don't know s. We can find it because we know that at t=0 the ball is on the ground and its height has to be zero.

Finally, we can find the maximum height:

The answer is
C.
Answer:
Can you take a picture of the line or at least give the slope because without that information I won't be able to find the equation.
Step-by-step explanation:
Answer:6x
Step-by-step explanation
you would add the 2x and 4x to make 6x since they are both positive, the 2's cancel out. not 100% sure but pretty sure