Solve the problem.A projectile is fired from a cliff 100 feet above the water at an inclination of 45° to the horizontal, with a muzzle velocity of 380 feet per second. The height h of the projectile above the water is given by 
where x is the horizontal distance of the projectile from the base of the cliff. How far from the base of the cliff is the height of the projectile a maximum?
A. 1228.13 ft
B. 1128.13 ft
C. 3484.38 ft
D. 2256.25 ft
Answer: D
Mathematics
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A. y = 
B. y = 0
C. y = 
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Mathematics