Purchase Solution

# Solving linear systems

Not what you're looking for?

To be efficient, under which conditions would you use graphing elimination or substitution? Provide an example.

The three methods of solving linear systems covered are substitution, elimination, and graphing.
There are examples posted on the solution field and in the attachment.

##### Solution Summary

This solution describes three methods of solving linear systems and the conditions in which each method is most efficient.

##### Solution Preview

Substitution is efficient if one of the variables is solved in terms of the other or is easily solved in terms of the other.
ex: 3x - 2y = 9
y = 2x - 7 so substitute to get 3x - 2(2x - 7) = 9, 3x - 4x + 14 = 9, -x + 14 = 9, -x = ...

##### Free BrainMass Quizzes

This quiz test you on how well you are familiar with solving quadratic inequalities.

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

##### Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

##### Probability Quiz

Some questions on probability

##### Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts