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anonymous
 one year ago
given the center (h,k) and radius r=3, write an equation for the circle in standard form
a) (x+5)^2+y^2=9
b) (x5)^2+y^2=9
c) (x5)^2+y^2=3
anonymous
 one year ago
given the center (h,k) and radius r=3, write an equation for the circle in standard form a) (x+5)^2+y^2=9 b) (x5)^2+y^2=9 c) (x5)^2+y^2=3

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SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0The equation of a circle is: \(\large\color{black}{ \displaystyle (x{\rm \color{red}{h}} )^2+ (y{\rm \color{blue}{k}} )^2 = {\rm \color{green}{r}}^2 }\) Where 1) \(\large\color{black}{ \displaystyle({\rm \color{red}{h}} ,~{\rm \color{blue}{k}} )}\) is the \(\normalsize\color{red}{ \bf c\color{blue}{e}n\color{blue}{t}e\color{blue}{r} }\) of the circle. 2) \(\large\color{black}{ \displaystyle {\rm \color{green}{r}} }\) is the \(\normalsize\color{green}{ \bf radius }\) of the circle.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0this is the general form, and you don't even need to change the (h,k). All you need to do is to substitute 3 for \(\rm \color{green}{r}\).

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0you have some typos in a question apparently....

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its B ? i forgot to put that (h,k)=(5,0)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0ok, h=5 k=0 r=3 then, yes, option B is correct. (x5)²+y²=9

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0Alright! You are welcome; have a good luck!
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