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Firlakuza [10]
3 years ago
9

The equation of a circle in general form is ​ x2+y2+20x+12y+15=0 ​ . What is the equation of the circle in standard form?

Mathematics
2 answers:
mestny [16]3 years ago
6 0

Answer:

(x)²+(y)²=0

Step-by-step explanation:

Mariulka [41]3 years ago
4 0

<u>ANSWER</u>

{(x + 10)}^{2}  + {(y + 6)}^{2} = 121

<u>EXPLANATION</u>

The equation of the circle in general form is given as:

{x}^{2}  +  {y}^{2}  + 20x + 12y + 15 = 0

To obtain the standard form, we need to complete the squares.

We rearrange the terms to obtain:

{x}^{2}  + 20x +  {y}^{2}  + 12y  =  -  15

Add the square of half the coefficient of the linear terms to both sides to get:

{x}^{2}  + 20x +100   + {y}^{2}  + 12y  + 36 =  -  15  + 100 + 36

Factor the perfect square trinomial and simplify the RHS.

{(x + 10)}^{2}  + {(y + 6)}^{2} = 121

This is the equation of the circle in standard form.

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