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Reulbach:Factoring, Graphing Inequalities and Systems of Eq.
Reulbach
5
Mathematics
7th Grade
05/02/2011

Additional Mathematics Flashcards

 


 

Cards

Term

Concept 42

 

X Box Factoring

 

 

Definition

1. GCF? Take it out!

2. First and last terms into the first and last boxes.

3. First coefficient in top of X. Last in bottom of X.

4. Solve.

Term

Concept 42

 

Steps to Factor

Definition

1. Factor each term.

2. "Pull out" the GCF and rewrite.

3. Check!

Term

Concept 33

 

Solving a System of Equations by Substitution

Definition

1. Solve one equation for one variable.

2. Substitute this expression into the other equation (replace your "y")

3. Solve for the remaining variable.

4. Substitute your answer into one of the other equations to find the value of the other variable.

5. Check BOTH equations. 

Term

Concept 33

 

Possible Solutions for Graphs of Linear Equations

Definition

Intersecting Lines: different slopes and different intercepts (one solution).

Parallel lines: same slope, different intercepts (no solution).

One line: same slope and intercept (many solutions).

Term

Concept 5

 

 Inequaltities

Definition

When expressions are not equal.


Use <, >, ≤, ≥

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