1:36 You said axis of symmetry. I think you meant to say directrix. An axis of symmetry would be slicing vertically through the vertex and the focus all the way down and up.
I needed a refresher. Thanks. I think you need to specify when calculate p that the sign gets lost. You have -1/8 = 1 /4*p and you say p equals 2. I think there is an absolute value somewhere?
thanks helped but im confused on how to find the equation of the parabola with the given properties. focus (4,5) and directrix y = - 3 can someone help?
Hello sir, is this all to finding the directrix and focus because my problems on my paper only consist of the equation equaling to y so is what you showed us all
LOL.... you would have to guess. The more drinks.... the easier it becomes. Sadly I was sober in this one. I remember making it. Although I am hoping to do better.
Thanks for the comment. You are exactly correct. It is a directrix and not axis of symmetry. Taping at night after midnight.... not always a good idea.
WHATELSEYOUWANT GAMING p can be any real number. Typically we start with easy ones where p =1. For instance the lense on a human eye is a parabola. And because the focus of that lense is the back of the eye... the p value for the human eye would be about 24.2 mm thus making an approximate quadratic equation for the curve of our lense y=1/(4*24.2)x^2 Y=1/96.8 x^2
