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1 http://www.dpgraph.com/math-art-contributors.html

2

3

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5 http://rowdy.mscd.edu/~talmanl/HTML/ParabolaDF.html

6 http://www.mathsisfun.com/geometr y/conic-sections.html http://www.falstad.com/ripple/ex-parabola.html http://www.maplesoft.com/applications/view.aspx?SID=552 3&view=html

7

8 p p y =-p (0,p) x 2 =4py, p>0 focus directrix

9 y =-p (0,p) x 2 =4py, p<0 focus directrix

10 x =-p (p,0) y 2 =4px, p>0 focus directrix

11 x =-p (p,0) y 2 =4px, p<0 focus directrix

12 Standard Equation of a Parabola (x- h) 2 = 4p(y – k) (y- k) 2 = 4p(x – h) Vertical axis, directrix: y = k-p Horizontal axis, directrix: x = h-p

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