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OpenStudy (anonymous):
Find the vertex, focus, directrix, and focal width of the parabola. x = 4y2
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OpenStudy (mertsj):
How does this open...right, left, up, or down?
OpenStudy (anonymous):
up i think
OpenStudy (mertsj):
What evidence do you have for that?
OpenStudy (anonymous):
put the equation into the graphing caculator and it shows that the parabola opens upward
OpenStudy (mertsj):
Something is wrong then. Solve it for y and then put it into your calculator. Because this opens to the right.
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OpenStudy (mertsj):
y=x^2 opens up x=y^2 opens to the right
OpenStudy (mertsj):
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