A player its a baseball into the outfield. The equation h= -0.005xsquared + x +3 gives the path of the ball, h=horizontal and x=distance?

2015-03-18 1:29 am
a. what is the equation of the axis of symmetry?
b. what is the maximum height reached by the baseball.
c. an outfielder catches the ball three feet above the ground. How far has the ball traveled horizontally when the outfielder catches it?

回答 (1)

2015-03-18 1:38 am
✔ 最佳答案
h= -0.005x²+ x +3 <<< use ^2 or ² for squared, copy my symbol for next time

the axis is at the vertex (peak)
algebra: you can use -b/2a (from Quadratic formula)
calculus: find 1st derivative, set to 0 for peak

a) -b/2a = 1/.01 = 100ft
b) h = -.005(100) +100 +3 = 103 - .5 = 102.5ft
c) ?? formula


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