(Close Window) 
Topic: Parabola 


Rough spelling I hope ya'll get the gist. what is the exact equation for a parrabala? 


It's in your algebra textbook, kiddo! Jack Shalom 


I don't have one but o well 


Y=a(xh)squared+k there are others but that's the standard equation. And it's spelled parabola. 


Ok thank you 


The x and y variables are, of course, interchangeable. There is no need, in the definition of a parabola, that it be a function. 


In fact, the axis of symmetry for a parabola need not be vertical or horizontal. So the GENERAL equation for a parabola is Ax^2 + Bxy + Cy^2 + Dx + Ey = F Where A, B, C, D, E and F are constants and B^2 = 4AC. 


...and (A^2 + B^2 + C^2) is not equal to zero. 


Okay, thank you. In case any of you are wondering why I asked it's because I found a way to transmit power from outlets in a house, through the air; so all electronics can be wireless. The receiver mechanizm use a parabola. So I was just wondering about the formula. 


Let us know how your project goes. 


Okay I will 