This video looks at identifying linear functions by graphs, sets of points, and equations. It includes a number of examples.
From Marty Brandl
This algebra video review tutorial shows you how to graph a linear equation in slope intercept form y=mx+b and standard form ax+by=c. This video is for high ...
From The Organic Chemistry Tutor
This video explains how to find the revenue, cost, and profit functions. (linear) Then the break even point is found.
Graph linear equations using y=mx+b If you like this video. Buy my book, "Fast Track to Pre-College Math: Review, Practice, and Solutions!" Just follow the link.