The circle

[miaj2009]

a circle has the equation x²+y² +12x+8y+7=0

a) write down the coordinates of the centre C

b) i) show that the line with equation x=13-2y is a tangent to the circle.

ii) find the coordinates of the point Q where the tangent and circle meet

c) the point P lies on the given line such that PQ=QC. Find the two possible coordinates of P

 

[pka]

a circle has the equation x²+y² +12x+8y+7=0
a) write down the coordinates of the centre C

Do you recognize \(\displaystyle \large (x+6)^2+(y+4)^2=-7+36+16~?\)

If you do then finish the problem.

If you do not, then talk with your teacher/instructor.

 

[pka]

Where's that from, pka?
OP has only 1 post...1 removed?

It must be the one you removed.

 

[stapel]

Where's that from, pka?
OP has only 1 post...1 removed?

The original poster did edit the original post. Perhaps the quote was from before that edit?

 

[Deleted member 4993]

The OP had deleted one of the posts. pka commented before the OP deleted the post