Maths-

General

Easy

Question

# The tangent at (, – ) on the curve y = – meets the curve again at Q, then abscissa of Q must be -

- 1 + 2t
- 1 – 2t
- –1 –2t
- 2t – 1

Hint:

### Slope of tangent =

find equation of tangent at P, then find the intersection point of the tangent and curve by substituting the given values in the option, and whosoever satisfies the equation is the required point.

## The correct answer is: 1 – 2t

### Given : y = – and Point P(, – )

Equation of tangent at point P

Find intersection point of the tangent and the curve by equating values of y for curve and tangent

for x = 1-2t

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