Parabolas!!!! (1 Viewer)

[OutOfOrder]

Hey
We are doing a math test on 4 topics, one of them is Fuctions and Graphs
But we didn't finish covering that topic, so apparently all there is in the test is Parabolas.
What does this include? Quadratic functions... what else? cubic function? Exponential function? Anything?

Please reply ASAP!
Thanks in advance!

 

[rama_v]

That would include geometry of parabola, quadratic identities and questions on the discriminant, as well as relationship between roots and coefficients...

 

[goan_crazy]

Parabola formulas

x^2=4y
y^2=4azx
x-h=4a(y-k)

discriminant-delta=b^2-4ac
roots
quadratics
etc

 

[rama_v]

To add to that:
General equation for a quadratic
x^2 - (sum of roots)x + product of roots

ax^2 +bx +c = 0

let roots be A and B
A + B = -b/a
AB=c/a

 

[goan_crazy]

This should help
thanks to Kullazi
notes on locus and parabola
i took out the calculus part

Hope it helps

 

[OutOfOrder]

That helps alot, thanks heaps both of you!