Locus

IMPORTANT

Locus: Overview

This Topic covers sub-topics such as Locus of a Point and Equation of Locus

Important Questions on Locus

MEDIUM
IMPORTANT

From the point A0,3 on the circle x2+4x+y32=0, a chord AB is drawn and extended to a point M such that AM=2AB. The equation of the locus of M is

MEDIUM
IMPORTANT

The equation of the locus of the points equidistant from the points A-2,3 and B6,-5 is

MEDIUM
IMPORTANT

A line segment of fixed length 2 units moves so that its ends are on the positive x-axis and on the part of the line x+y=0 which lies in the second quadrant. Then, the locus of the mid-point of the line has the equation 

HARD
IMPORTANT

A point P moves so that the sum of squares of its distances from the points 1,2 and -2,1 is 14. Let fx,y=0 be the locus of P which intersects the x-axis at the points A and B and the y-axis at the points C and D. Then the area of the quadrilateral ABCD is equal to

MEDIUM
IMPORTANT

Find the locus of centroid of triangle ABC with Acosθ,0B0,sinθ and C0,0 and θ0,90°.

HARD
IMPORTANT

The locus of mid-points of the perpendiculars drawn from points on the line x=2y to the line x=y is

HARD
IMPORTANT

The locus of the mid-point of the portion of a line of constant slope 'm' between two branches of the rectangular hyperbola xy=1 is

MEDIUM
IMPORTANT

The Locus of the point tanθ+sinθ, tanθ-sinθ is (θ isa parameter)

MEDIUM
IMPORTANT

A0,4,B0,-4 are two points. The locus of P which moves such that PA-PB=6 is

EASY
IMPORTANT

Let A5,-3, B3,-2, C-1,5 be three points. If P is a point satisfying the condition PA2+2PB2=3PC2, then a point that lies on the locus of P is

EASY
IMPORTANT

From a point A0,3 on the circle x+22+y-32=4, a chord AB is drawn and it is extended to a point Q such that AQ=2 AB. Then the locus of Q is

MEDIUM
IMPORTANT

If the perimeter of a triangle is 20 and two of its vertices are -5,0 and 6,0, then the locus of the third vertex is
tions:

MEDIUM
IMPORTANT

Suppose P and Q are the mid points of the sides AB and BC of a triangle where A1,3, B3,7 and C7,15 are vertices. Then the locus of R satisfying AC2+QR2=PR2 is

MEDIUM
IMPORTANT

A stick of length r units slides with its ends on coordinate axes. Then the locus of the midpoint of the stick is a curve whose length is

HARD
IMPORTANT

If P lies on the line y=x and Q lies on y=2x and PQ=4 then the mid point of PQ lies on the curve

HARD
IMPORTANT

A variable line through A6,8 meets the curve x2+y2=2 at B and C. P is a point on BC such that AB,AP,AC are in HP. The minimum distance of the origin from the locus of P is

EASY
IMPORTANT

A line segment of length 2l sliding with ends on the axes, then the locus of the middle point of the line segment is 

EASY
IMPORTANT

p,x1,x2,,xn and q,y1,y2,,yn are two arithmetic progressions with common differences a and b respectively. If α and β are the arithmetic means of x1,x2,,xn and y1,y2,,yn respectively, then the locus of Pα,β is

EASY
IMPORTANT

Find the locus of the point which is at 9 units distance from the point 3,5

MEDIUM
IMPORTANT

Write the equation to represent the locus of the points that is equidistant from the points (3,2) and 4,3.