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September 23, 2014

September 23, 2014

Posted by **Cole** on Thursday, October 20, 2011 at 7:06pm.

A. What is the equation of the axis of symmetry? It's -100 right?

B. What is the Mac height reached by the baseball? Idk

C. An outfielder catches the ball 3 ft above the ground. How far has the ball traveled horizontally when the outfielder catches it? Idk

- Alg 1 quadratic functions -
**Henry**, Friday, October 21, 2011 at 8:39pmY = -0.005x^2 + x + 3

A. h = Xv = -b / 2a = -1 / -0.01 = 100 X = 100 = Eq of axis of symmetry.

B. The max ht = Y-coordinate of vertex.

In the given Eq, substitute 100 for X

and get: Yv = K = 53 = max ht.

V(h,k) = V(100,53).

C. Y = -0.005x^2 + x + 3 = 3,

-0.005x^2 + x = 3-3 = 0,

x(-0.005x + 1) = 0,

X = 0,

-0.005x + 1 = 0,

0.005x = 1,

X = 200 = Hor. distance traveled.

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