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Mathematics 20 Online
OpenStudy (anonymous):

Given that the focus of a parabola is located at (0, -6) and the vertex is (0, 1) what is the directrix of the parabola?

OpenStudy (anonymous):

Help me pls

OpenStudy (campbell_st):

well the graph looks like |dw:1400183340045:dw| the distance between the focus and vertex is called the focal length, a. the dirextrix is located a units above the vertex... so whats the distance between the focus and vertex..?

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