The equation of a circle is (x−11)2+(y+15)2=144 .
2 answers:
Answer: The radius of the circle is 12 units.
Step-by-step explanation: The given equation of a circle is as follows :
We are to find he radius of the circle.
We know that
the standard form of the equation of a circle with center at the point (h, k) and radius r units is given by
From equation (i), we have
Comparing the above equation with the standard form, we get
radius, r = 12 units.
Thu, the radius of the circle is 12 units.
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This equation cannot be solved using trivial methods found in high-school classes, so we resort to graphical examination.
Indeed, using a computer algebra system such as the ones on modern TI calculators and on many internet sites gives equality at