A) 3
B) 1
C) 4
D) 2
Correct Answer: A
Solution :
The equation of all parabolas having directrices parallel to x-axis is \[{{(x-h)}^{2}}=\pm 4a(y-k)\]. There are three arbitrary constants, h, k and a. \[\therefore \] order = 3.You need to login to perform this action.
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