Question

if the circumcentre of the triangle formed by the lines x+2=0, y+2=0 and kx+y+2=0 is (-1,-1), the what is the value of k?

Answer 1

Step-by-step explanation:

x+2=0

x= -2

y+2 =0

y= -2

kx+ y+2 =0

k(-2) + (-2) + 2 =0

-2k -2 +2 =0

2(-k -1 +1) =0

-k =0

k=0

Answer 2

Answer:

this is the correct answer