How to draw the cubic Bézier curve?

I have a cubic Bézier curve, and I need to programatically calculate some information about it. In particular: - The length; - The x,y position of a point on the Bézier curve given the percentage from the start of it (i.e., 0.0 would be at the start...

a demand curve is given by Qd=600-20p. draw the demand curve. Show what happens on this demand curve when the prices rises from $6 to $8. You dont have to draw it to scale.

How do you draw a straight line after making a single curve using the pen tool? I am tracing a bitmap, and the pen tool always wants to make a weird curve (that I cannot straighten) after the first curve I draw. The only way I know to combat this is...

Draw a graph of a money demand curve and a money supply curve. On the graph, indicate the equilibrium interest rate. Also indicate the new equilibrium interest rate if the Fed increases the money supply.

I use a Shanahan curve and the toe is too open - great for slapshots but can't dangle. My other stick is a Coffey curve, and I can dangle but can't get a good slap shot. I'm looking for something in between. Help!

A calibration curve is to be plotted using the data in the table below where the uncorrected UV absorbance of four samples (solutions of a drug metabolite of known concentration) were each measured four times. A sample X (of unknown concentration) gives...

For my economics homework, it says to "Draw one graph with both curves on it. Label the curves and the axes." How do I draw both curves on one graph...like what would that look like? Can anyone explain it to me in a way that I can draw it or...