Posted by jen on Sunday, September 30, 2007 at 7:54pm.
If a graph of a function is given and they tell you to draw the derivative, how do you find it if the function is not given.

Calculus  Kristen, Sunday, September 30, 2007 at 10:24pm
draw a tangent line and find the slope of that line, the derivative is equal to the slope of a tangent line at the point

Calculus  drwls, Monday, October 1, 2007 at 7:04am
If they want you to PLOT the derivative (df/dx), you will have to measure the slope of the tangent line at a series of points along the f(x) curve, and then plot df/dx vs x.

Calculus  Ken, Sunday, August 24, 2014 at 10:58am
A triangular plate sits on the x−y plane, and has the following vertices:(0,0), (1,0), and (1,2). It's massdensity is given by the function f(x,y)=xy.