The standard equation of a right-left parabola with vertex at (h,k) and focal length p is given by:
Rewriting the given equation:
Here h = 3, k = -1 and p = 4
Hence the vertex is (h,k) = (3, -1)
And the focus is given by (h + p, k) = (3 + 4, -1) = (7,-1)
The directrix is given by x = h – p
Hence, the directrix is x = 3 – 4 = -1
Plotting the graph using the ...
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