kristenlaura2 kristenlaura2
  • 03-02-2020
  • Mathematics
contestada

3x^2 + 3y^2 + 6x − y = 0
Show that the equation represents a circle by rewriting it in standard form.

Respuesta :

DevonFen DevonFen
  • 10-02-2020

Therefore the standard  form of the circle is

[tex](x+1)^2+(y+\frac{1}{6})^2=1\frac{1}{36}[/tex]

Step-by-step explanation:

Given

[tex]3x^2+3y^2+6x-y=0[/tex]

[tex]\Leftrightarrow 3(x^2+y^2+2x-\frac{1}{3} y)=0[/tex]

[tex]\Leftrightarrow (x^2+2x+1) +(y^2+2.y.\frac{1}{6} +\frac{1}{36})-1- \frac{1}{36}=0[/tex]

[tex]\Leftrightarrow (x+1)^2+(y+\frac{1}{6})^2=1+\frac{1}{36}[/tex]

[tex]\Leftrightarrow (x+1)^2+(y+\frac{1}{6})^2=1\frac{1}{36}[/tex]

Therefore the standard  form of the circle is

[tex](x+1)^2+(y+\frac{1}{6})^2=1\frac{1}{36}[/tex]

Answer Link

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