How do you write the standard form of the equation of the circle with the center (5,- 1) and radius 2?
1 Answer
Dec 22, 2016
Explanation:
The standard form of the equation of a circle is.
#color(orange)"Reminder " color(red)(bar(ul(|color(white)(2/2)color(black)((x-a)^2+(y-b)^2=r^2)color(white)(2/2)|)))#
where (a ,b) are the coordinates of the centre and r, the radius.
#"here " a=5,b=-1" and " r=2#
#(x-5)^2+(y-(-1))=2^2#
#rArr(x-5)^2+(y+1)^2=4" is the equation of the circle"#
