Download the app

Questions  

A straight line with slope 2 and y-intercept 5 touches the circle. x2+y2+16x+12y+c=0 at a point Q. then the co-ordinates of Q are

a
(−6,11)
b
(−9,−13)
c
(−10,−15)
d
(−6,−7)

detailed solution

Correct option is D

Let Q=x1,y1.  Thenwe have  y1=2x1+5 and y1+6x1+8×2=−1                                               ⇒x1=−6 and y1=−7

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

The area of the quadrilateral formed by the tangents from the point (2, -1) to the circle x2+y2+4x8y5=0  with a pair of radii joining the points of contact of these tangents is


phone icon
whats app icon