standard equation of a circle Assignment | Assignment Help Services
What is the standard equation of a circle with center ##(-2, 0)## and radius ##4##? ##(x+2)^2+y^2=16## The of a circle is. ##color(red)(|bar(ul(color(white)(a/a)color(black)((x-a)^2+(y-b)^2=r^2)color(white)(a/a)|)))## where (a ,b) are the coordinates of the centre and r, the radius. here a = -2 , b = 0 and r = 4 Substitute these values into the standard equation. ##(x-(-2))^2+(y-0)^2=4^2## ##rArr(x+2)^2+y^2=16″ is the equation of the circle”##
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