Slopes and Linear Equations (graphs, tables, first differences, Linear Systems, etc)

Trades Math Video on Slopes and Grades that looks at Plumbing and other trades that require Grade and Slope for Projects

The Cartesian Plane, How to Plot Points Ordered Pairs, and Quadrants all Explained! 

What is Slope in Math?  (Explained with Simple Examples)

What is Direct Variation and Partial Variation? Explained! 

How to (Very!) Quickly Graph a Line Given the Slope and a Point on the Line

Slope as a Rate of Change (Unit Rate)

Slope Intercept Form... also known as y=mx+b

While watching this video, try fooling around with Desmos (link is HERE). It will help you out a lot!

The Rule of Four: Expressing Math Ideas with Words, Graphs, Table of Values, and Equations 

How to Find the Equation of a Line Given The Slope and a Point on the Line

How to Solve for y...or... Convert from Standard Form to Slope-Intercept Form (y=mx+b)

How to Deal with Parallel and Perpendicular Lines and Linear Equations 

What Are Dependent and Independent Variables on a Graph?

Distance Time Graphs: How to Draw and Interpret Them

Linear and Non-Linear Relations, Lines and Curves of Best Fit, and Interpolation/Extrapolation all Explained!

How to Find the Point of Intersection to Solve a System of Equations by Graphing (with Desmos)

How to Find the Point of Intersection to Solve a System of Equations by Graphing (with a Graphing Calculator)

How to Solve a Linear System by Graphing, Elimination, and Substitution 

Solving Word Problems with Linear Systems: Modelling Problems with Numbers 

Solving Linear Systems: Distance Time Word Problems 

Solving Linear Systems: Percent & Mixture Word Problems 

Solving Linear Systems: Money Word Problems