Asked by cecelia
the equation of the circle is x^2-8x+y^2+4y+11=0 find any coordinates that intersect the line y=-x-1
Answers
Answered by
Reiny
In your circle equation replace y with -x-1 and simplify, you should get the reduced quadratic
x^2 - 5x + 6 = 0
which factors and has solutions
x=2 or x=3
sub those x values into your y = -x-1 to get the y's and you are done!
x^2 - 5x + 6 = 0
which factors and has solutions
x=2 or x=3
sub those x values into your y = -x-1 to get the y's and you are done!
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