Asked by Jess
Circle p has a center at (2,-8) and a diameter of 20 feet. What is the equation of this circle?
Answers
Answered by
Bosnian
R = Radius = diameter / 2 = 20 / 2 = 10 ft
The center coordinate ( a , b )
a = 2 , b = - 8
Equation of a circle:
( x - a )² + ( y - b )² = R²
( x - 2 )² + [ y - ( - 8 ) ]² = 10²
( x - 2 )² + ( y + 8 )² = 100
The center coordinate ( a , b )
a = 2 , b = - 8
Equation of a circle:
( x - a )² + ( y - b )² = R²
( x - 2 )² + [ y - ( - 8 ) ]² = 10²
( x - 2 )² + ( y + 8 )² = 100
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