Write the equation of a parabola with a vertex at (0, 0) and a directrix y = -1.

Question

jchick · Answer

Options?

jchick · Answer

y = a(x - h)² + k

anonymous · Answer

attachment

jchick · Answer

Any ideas how to approach this problem?

anonymous · Answer

those are the choices, i got stuck on this problem

jchick · Answer

Ok can you show me what you have done so far or do you know how to start?

anonymous · Answer

i don't know how to start it

jchick · Answer

Ok I will help

anonymous · Answer

thank you :)

jchick · Answer

So do you see the standard form I sent earlier

anonymous · Answer

yes

jchick · Answer

Ok actually one way to start these is to sketch out the parabola do you know how to do that?

anonymous · Answer

no

jchick · Answer

Ok I will help with that too :)

anonymous · Answer

great! :D

jchick · Answer

Where would the vertex be located on a graph?

jchick · Answer

Or which way would it open?

anonymous · Answer

y axis?

anonymous · Answer

am not the best in math this is an online course that i have to re take and its doesn't teach us anything we just take quiz right now am giving 2 hours to complete this quiz

jchick · Answer

Do you know what the vertex is?

michele_laino · Answer

do you know the definition of a parabola?

jchick · Answer

The vertex is the middle of your parabola

jchick · Answer

Remember that the parabola always faces toward the focus and away from the directrix

jchick · Answer

The vertex is supposed to be at 0,0 and the directrix at -1 any ideas?

jchick · Answer

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jchick · Answer

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