This video using 3D Calc Plotter to illustrate the meaning of a directional derivative.
This video explains how to write a linear equation in slope intercept form from a table of values.
This video reviews how to graph a line given the slope and y-intercept.
This video give a brief introduction to Calculus. It also provide an example of an instantaneous rate of change from a graph and the meaning of area under a function.
This video explains how to determine a cost function, average cost function, and evaluate an average cost function.
This video explains how to determine a linear cost function from two sets of ordered pairs.
This video explains how to identify the constant rate of change and Initial Value of a linear cost function.