Optimisation problem

G

Guest

Guest
A baseball fielder throws the ball so that the equation of the path of the ball is
y = 1.5 + x - 0.02 ^2
where x = metres is the horizontal distance travelled by the ball and y (metres) is the vertical height reached.

a. Find the value of x for which the maximum height is reached.
b. Find the maximum height reached.

thanks in advance
 
Find the vertex of the parabola.

Eliz.
 
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