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Question
Find the equation of the parabola in the cases given below:
Focus (4, 0) and directrix x = – 4
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Solution
Focus (4, 0) and directrix x = – 4
Parabola is open rightwards vertex (0, 0)
a = 4
Distance AS = 4 unit
F2 = 4(4)x
Equation of parabola
y2 = 16x.
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