# SOLUTION: X2+Y2=25 Is solving this problem considered a function? How do I plot a graph using a smooth curve for this problem? Ed

Algebra ->  Algebra  -> Rational-functions -> SOLUTION: X2+Y2=25 Is solving this problem considered a function? How do I plot a graph using a smooth curve for this problem? Ed      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Algebra: Rational Functions, analyzing and graphing Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Rational-functions Question 107025: X2+Y2=25 Is solving this problem considered a function? How do I plot a graph using a smooth curve for this problem? EdAnswer by Fombitz(13828)   (Show Source): You can put this solution on YOUR website! Solve for y as a function of x. and Since the square root cannot be negative, then The domain of x is {-5,5} and the range of y is {-5,5}. Choose several x's between -5 and 5 (-5,-4,-3,-2,-1,0,...) and calculate the y values. Examples, when x=-4, and and and and So the ordered pairs (3,4) and (3,-4) are on your curve. More points make for a smoother curve. When you graph the function, you will see that it is the top and bottom of a circle centered at 0,0 with a radius of 5.