Posted by **David** on Wednesday, January 26, 2011 at 3:44am.

Use the bisection method or a graphing calculator to find the coordinates of the two points on the graph of that lie r = 1 unit from the origin. Give the result to the nearest hundredth, I just need a direction to go on this problem

- calculus -
**MathMate**, Wednesday, January 26, 2011 at 8:14am
There are infinite points that lie on the r=1 circle.

Use trial and error, start with a value of x (<1) and adjust y so that the distance √(x²+y²)=1.

For example, try x=0.5,

y=0.8, √(0.5²+0.8²)=0.943

Try a bigger y,

y=0.85, √(0.5²+0.85²)=0.986

try a bigger y...

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