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Alina [70]
2 years ago
8

NO LINKS!!!! Find the equation of the circle below​

Mathematics
2 answers:
inysia [295]2 years ago
7 0

Answer:

(x+3)^2+(y-2)^2=9

Step-by-step explanation:

<u>Equation of a circle</u>

(x-a)^2+(y-b)^2=r^2

where:

  • (a, b) is the center
  • r is the radius

From inspection of the diagram, the center of the circle <em>appears</em> to be at point (-3, 2), although this is not very clear.  Therefore, a = -3  and  b = 2.

Substitute these values into the general form of the equation of a circle:

\implies (x-(-3))^2+(y-2)^2=r^2

\implies (x+3)^2+(y-2)^2=r^2

Again, from inspection of the diagram, the <u>maximum vertical point</u> of the circle appears to be at y = 5.  Therefore, to calculate the radius, subtract the y-value of the center point from the y-value of the maximum vertical point:

⇒ radius (r) = 5 - 2 = 3

Substitute the found value of r into the equation:

\implies (x+3)^2+(y-2)^2=3^2

Therefore, the final equation of the given circle is:

\implies (x+3)^2+(y-2)^2=9

Anni [7]2 years ago
6 0

Centre(-3,2)

diameter=6 units [0-(-6)=6units ]

radius=6/2=3

Equation of circle

\\ \rm\Rrightarrow (x-h)^2+(y-k)^2=r^2

  • For centre(h,k) and radius r

So our equation

\\ \rm\Rrightarrow (x+3)^2+(y-2)^2=3^2

\\ \rm\Rrightarrow (x+3)^2+(y-2)^2=9

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