Recent content by LeadyKnight

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    Find equation of parabola with focus and directrix

    Homework Statement Find the equation of the parabola with focus (0, -4) and directrix y = -2 i barely understand this thing. i mean how do i find the vertex. the book says D1 = focus to any point on the graph, and D2= the point on the graph to the directrix. and D1 = D2. how do i graph if...
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    How Do You Calculate the Area of a Rectangle with Given Perimeter and Diagonal?

    thank you guys, it really does help me out.
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    How Do You Calculate the Area of a Rectangle with Given Perimeter and Diagonal?

    Hi all, I am new to physicsforums, so i just want to get to know yall. I am a sophomore and takin alg II, i have an AMC test coming up on February 9. and my teacher gave me a review packet. there are only 25 questions but they are like the hardest questions I've ever seen. So if there's someone...