The mirror image of the parabola in the tangent ot the parabola at the point (1, 2) is |
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a) |
b) |
c) |
d) |

The mirror image of the parabola in the tangent ot the parabola at the point (1, 2) is |
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a) |
b) |
c) |
d) |

1 Answer

127 votes

**(c)**

Any point on the given parabola is

The equation of the tangent at (1, 2) is

The image of the point in is given by

And

Eliminating from and we get

The required equation of reflection is

**(c)**

Any point on the given parabola is

The equation of the tangent at (1, 2) is

The image of the point in is given by

And

Eliminating from and we get

The required equation of reflection is

127 votes

127