# SOLUTION: The height of a projectile fired vertically into the air (neglecting air resistance) at an initial velocity of 160 feet per second is a function of time, x, and is given by the equ

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 Click here to see ALL problems on Miscellaneous Word Problems Question 439858: The height of a projectile fired vertically into the air (neglecting air resistance) at an initial velocity of 160 feet per second is a function of time, x, and is given by the equation f(x) = 160x – 16x2 Find the highest point reached by the projective. Answer by Alan3354(31530)   (Show Source): You can put this solution on YOUR website!f(x) = -16x^2 + 160x The vertex is on the line of symmetry. The line of symmetry is x = -b/2a = -160/-32 = 5 f(5) = -400 + 800 = 400 feet