Question Solve the equation r=4 Evaluate r12=3Find the domain r12=3,r=0Cross multiply 12=r×3Simplify the equation 12=3rRewrite the expression 3×4=3rEvaluate 4=rSwap the sides of the equation r=4Check if the solution is in the defined range r=4,r=0Solution r=4 Show Solution Rewrite the equation x2+y2=16 Evaluate r12=3Multiply both sides of the equation by LCD r12×r=3rSimplify the equation 12=3rRewrite the expression −3r=−12Divide both sides of the equation by −3 r=4Square both sides of the equation r2=42To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2 x2+y2=42Solution x2+y2=16 Show Solution Graph