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Write the vertex form equation for this parabola: Focus (3,-9), Directrix X=-3

Write the vertex form equation for this parabola: Focus (3,-9), Directrix X=-3
asked 188k views
4 votes
Write the vertex form equation for this parabola: Focus (3,-9), Directrix X=-3

asked
User Manuchehr
by
7.2k points

1 Answer

4 votes
Y=KX+M
-9=(-3/9)*-3+m
-9=1+M
M=-10

Y=(-3/9)-10 is the answer

answered
User Venkatesh Konatham
by
8.5k points
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