Xy Coordinate Plane Circle. Any point xy on the path of the circle is x rsin θ y rcos θ. Given that point x y lies on a circle with radius r centered at the origin of the coordinate plane it forms a right triangle with sides x and y and hypotenuse r.
This definition can be used to find an equation of a circle in the coordinate plane. Then input the x and y values into the equation. Where xy are the coordinates of each point and r is the radius of the circle.
Once again I would urge you do not simply memorize this by wrote but understand the argument that produce this equation.
Enter your answer in the box. We can also start at P and move in the other two directions as shown to get points in the xz -plane this is S with a y -coordinate of zero and the yz -plane this is R with an x -coordinate of zero. Aug 27 2016 First find the equation for the circle. If a circle is tangent to the x-axis at 30 this means it touches the x-axis at that point.
