Inequality from graph

The  exercise appears under the Algebra I Math Mission. This exercise introduces the process of writing an inequality from a graph.

Types of Problems
There is one type of problem in this exercise:


 * 1) Write the inequality from the graph: This problem provides a graph of a linear inequality in two variables. The student is asked to determine the equation of the inequality and use the answer space to provide the correct answer.Goiitv1.png

Strategies
Knowledge of linear inequalities and graphing would ensure success on this exercise.
 * 1) The arrow pad can be used to toggle between the inequality symbols and then the Tab button can move the cursor to the typing spaces. Knowing this can increase efficiency.
 * 2) Solid lines are used when the inequality could be equal to, dashed lines are for strict inequality.
 * 3) The line is requested in slope-intercept form, therefore if the shading is above the line it is > and if the shading is below it is <.
 * 4) A way to increase speed is to determine the inequality symbol, then find the slope by counting rise over run, then observe the y-intercept.

Real-life Applications

 * 1) Inequalities are far more valuable in real-life since real-life is not always exact.
 * 2) Linear inequalities are extremely useful in linear programming applications.