Answer:
Step-by-step explanation:
i think you are talking about the diameter of the circle.
equation of the circle is
(x-1)(x+3)+(y-8)(y-2)=0
x^{2}-x+3x-3+y^{2}-8y-2y+16=0
or x^{2}+y^{2}+2x-10y+13=0
Answer: x = 9
Step-by-step explanation:
X² -3x -10
x -5
x 2
(x - 5) (x + 2) = x² -3x - 10
x² +2x -5x -10
simplify
x² -3x -10 True
your answer is D.(x+2)
hope this helps