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Mathematics 18 Online
OpenStudy (anonymous):

Medal & Fan?!?? Using a directrix of y = -3 and a focus of (2, 1), what quadratic function is created?

OpenStudy (anonymous):

I'm completely lost on this...

OpenStudy (misty1212):

|dw:1419020737060:dw|

OpenStudy (misty1212):

first you need to know what it looks like if it opens up, down, left or right

OpenStudy (anonymous):

What does that mean?

OpenStudy (misty1212):

so you need to graph it to see this one opens up

OpenStudy (anonymous):

How do I graph a directrix?

OpenStudy (freckles):

the meaning of open up, down, left or right: |dw:1419020888714:dw|

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