Home
Class 11
MATHS
If a circle , whose centre is (-1,1) tou...

If a circle , whose centre is `(-1,1)` touches the straight line `x+2y+12=0`, then the co-ordinates of the point of contact are

A

1) `((-7)/2,-4)`

B

2) `((-18)/5,(-21)/5)`

C

3) `(2,-7)`

D

4) `(-2,-5)`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

If the line x=7 touches the circle x^2+y^2-4x-6y-12=0 , then the co-ordinates of the point of contact are

Find the equation of circle whose centre is the point (1,- 3) and touches the line 2x-y-4=0

A circle whose centre is (4,-1) passes through the focus of the parabola x^2+16y=0 . Show that the circle touches the directrix of the parabola.

Determine whether the line x+3sqrt2*y=9 is a tangent too the ellipse x^2/9+y^2/4=1 . If so, find co-ordinates of the points of contact.

A tangent to the parabola y^2=8x makes an angle of 45^0 with the straight line y=3x+5. Then find one of the points of contact.

If the line y=mx+c be a tangent to the circle x^2+y^2=a^2 , then the point of contact is

Seg AB is a diameter of a circle with centre P(1,2). If A(-4,2), then find the co-ordinates of point B.

Determine whether the line x + 3y sqrt(2)= 9 is a tangent to the ellipse x^(2)//9 + y^(2)//4 = 1 . If so, find the co-ordinates of the pt of contact.