







Polar coordinates 
20100414 

Lan pose la question : Given the rectangular equation (x^2)+2x+(y^2)+y=0, find the polar equation. Harley Weston lui répond. 





Plotting coordinates on a number plane 
20060908 

Victor pose la question : I need to plot coordinates (0,2), (2,2), (2,0), and (0,0) on a number or coordinates plane, I am not sure how to do this, and get lost after the first point, can you please help? Penny Nom lui répond. 





Polar to Cartesian coordinates 
20060115 

Linden pose la question : How do you convert six units at 30 degrees Polar Coordinate into a Cartesian Coordinate? Penny Nom lui répond. 





A valentines project 
20000221 

Courtney Dohoney pose la question : I was assigned a valentines project. Our job is to make a valentines card that has a math theme. On my valentines card I would like to include the set of equations that when graphed look like a heart. If you can figure out a set of equations and get it back to me I would be very happy. Harley Weston lui répond. 





A Polar Plot 
19990506 

Irene pose la question : Consider the polar equation r=23Cos(theta/2) In the interval [o, 4Pi], how would you find the area of one of the leaves and also the length of one of the edges of a leaf? Harley Weston lui répond. 

