CBSE Class 11-science Answered
Since the parabola is symmetric about the x axis, it is of the form y2 = 4ax.
Hence it passes through the point (4,5), the co-ordinates should satisfy the equation of the parabola
Hence replace x = 4, and y = 5 in the equation y2 = 4ax, we get 25 = 4 a 4 a = 25/16.
Hence the equation of the parabola is y2 = 25x/16 or 16y2 = 25x
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