Algebra 2
posted by Rocke .
write the standard form of the equation of the circle withthe given radius (8,0) and whose center is the origin

Algebra 2 
MathMate
The given radius of (8,0) does not look right, since radius is a scalar, it should not have two components.
The standard form of the circle, centred at (x0,y0) with radius r is given by:
C : (xx0)²+(yy0)² = r²
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