Intermediate Algebra Chapter 3
Graphs and Functions

Supplements to Section 3.1       Worked Out Examples
Plotting Points Finding and Using the Slope of a Line  
Finding the Linear Equation when given a Point and the Slope Graphing Linear Equations   B    C  
Interactive experiments with m and b in y = mx + b Finding Slope and y-intercept  

Supplement to Section 3.2

For a complete but compact discussion of linear functions CLICK HERE

Supplement to Section 3.3

 

 

Supplement to Section 3.4
For some worked out examples click here

It might also be helpful to examine and experiment with this interactive line

Or another interactive line

Supplement to Section 3.5
Some of the worked out examples listed under Section 3.1 above may be helpful

Supplement to Section 3.6
Some worked out examples are only a click away.

The foundation for the process of determining the solution of a linear inequality in two variables is the fact that a line Ax + By = C divides the plane ito two half-planes. One of the half-plane is the solution to the inequality Ax + By < C and the other half-plane is the solution to the inequality Ax + By > C

The example below illustrates this correlation between the algebraic and geometric views of the three possibilities in a comparison