fattycake
fattycake fattycake
  • 11-07-2019
  • Mathematics
contestada

1. Write the standard equation for a circle that has a center of (-5.-2) and a radius of 25.

Respuesta :

freckledspots freckledspots
  • 11-07-2019

Answer:

[tex](x+5)^2+(y+2)^2=625[/tex]

Step-by-step explanation:

The center-radius form a circle is [tex](x-h)^2+(y-k)^2=r^2[/tex]. Okay, it is called standard form.  But I like to call it center-radius form because it tells us the center (h,k) and the radius,r.

So we are given the following information r=25 and center=(h,k)=(-5,-2).

So we just plug this in like so:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

[tex](x--5)^2+(y--2)^2=25^2[/tex]

[tex](x+5)^2+(y+2)^2=625[/tex]

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