Finding Coordinates from Points on the Plane
Finding coordinates from points on a graph.
Practical Problem: Find Travel Speed
In a practical illustration, travel speed is calculated using two ordered pairs.
Graphing Points on the Coordinate Plane
How to graph points on the coordinate plane.
Solution Sets for Systems of Equations
A system of two linear equations can have no points in common (parallel); one point at which they intersect, or an infinite number of solutions.
Rewriting Equations in Order to Use the Elimination Method
Using the elimination method to solve a system of equations will sometimes require rewriting one of the equations.
Practical Problem: Find the Rate of Gas Pumped
Illustrating the slope formula with a practical rate problem.
Examples of Solving Systems of Equations Using the Elimination Method
The elimination method of solving a system of equations is demonstrated.
Slope Formula, The
The slope formula enables you to use two ordered pairs to find slope. Sub notation is used for clarity.
Graphing Linear Equations with One Variable
How to graph a linear equation with one variable.
Graphic of Quadratic Equations
All quadratic equations with two variables have an infinite number of solutions. When graphed, these ordered pairs lie on a curve called a parabola.