# How do you write an equation of a circle with center at (7, 0) and a radius of 10?

##### 1 Answer

Mar 12, 2018

#### Explanation:

#"the standard form of the equation of a circle is"#

#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 is"#

#"the radius"#

#"here "(a,b)=(7,0)" and "r=10#

#rArr(x-7)^2+(y-0)^2=10^2#

#rArr(x-7)^2+y^2=100larrcolor(red)"equation of circle"#