You use the first equation if the parabola is horizontal(goes left and right) and the second one if the parabola is vertical(goes up or down). Generally every book should have those two equations.
Mame , Thanks I will used then the equation with 4P instead of 2P. I do not understand why the references manual for the FE exam has that equation like that. Again thanks for your comments.
please dont stop making these
Really filled in some gaps that were left by my professor. thank you!
this man is a GOAT
Mr. Mario can you please make a video on finding the equation of parabola when focus and vertex are given?
Mr.Mario, can you please make a video on finding the vertex, focus, and, directrix, etc. given a equation. Ex. x=3/8x^2 And then graphing it.
I think this is the video you are looking for here:
How to Graph Parabolas and Write the Equationua-cam.com/video/900WmsiXYJg/v-deo.html
Really appreciate the info!
thank you this helped alot
Thanks Mr.Mario, I really appreciate it
You’re welcome Samir!
Thank you Sir!
Thanks😊😊
You’re welcome Rae!
whta if you were given 2 directrixes and one focus?
it is always 4p?
Do you mean about the width of the parabola at the level of the focus?...yes
@@MariosMathTutoring Thanks. If I have a focus of (2, 0) and a directrix x = -2, would my equation be (y - 0)^2 = 8(x-2)?
(y-k)^2=2p(x-h) vs (x - h)2 = 4p (y - k). Why some books uses the second and others the first. There is any difference?
You use the first equation if the parabola is horizontal(goes left and right) and the second one if the parabola is vertical(goes up or down). Generally every book should have those two equations.
Mame , thanks for your fast response. However, where I want to know is why some books using 2P and other uses 4P. Thanks again.
@@Danielito-Melo hmm I dont really know why they use 2p. I thought the standard form uses only 4p.
Mame , Thanks I will used then the equation with 4P instead of 2P. I do not understand why the references manual for the FE exam has that equation like that. Again thanks for your comments.
@@Danielito-Melo np. I also was just struggling with this a few days ago.
thanks
How do u find the vertex
Sir how should we find p value
P is the distance from the vertex to the focus or the distance from the vertex to the directrix.
Mario said the D word 0:20
I guess the final qs should be (y-1)*2=8(x-3)
Am i right sir?
Really appreciate your professional approach sir
thats what i thought
Freshman here ilysm
*the perpendicular is going to get longer*