Pre-Cal 40S (Winter 2009): BOB

Thursday, May 28, 2009

BOB

Hey there. This recent unit we did was conics. It was all about cones and stuff. I found this to be pretty simple, just like the stuff we did in grade 11 pre cal with parabolas.

there is a little diagram of how the shapes were formed.

Circle formula: $\left(x - a \right)^2 + \left( y - b \right)^2=r^2.$
Elipse formula: $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1$
Parabola formula: $(x-h)^{2}=4p(y-k)\,$ or horizontal parabola: $(y-k)^{2}=4p(x-h)\,$
Hyperbola formula: $\frac{x^{2}}{a^{2}} - \frac{y^{2}}{b^{2}} = 1$

I hope everyone gets an A+! don't forget about DEV projects