Solving Systems of Equations

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Define a system of equations.
Back
A system of equations is a set of two or more equations with the same variables. The solution is the set of values that satisfy all equations simultaneously.
2.
FLASHCARD QUESTION
Front
What is the domain of a function?
Back
The domain of a function is the set of all possible input values (x-values) for which the function is defined.
3.
FLASHCARD QUESTION
Front
What is the range of a function?
Back
The range of a function is the set of all possible output values (y-values) that the function can produce.
4.
FLASHCARD QUESTION
Front
How do you solve a system of linear equations using substitution?
Back
1. Solve one equation for one variable. 2. Substitute that expression into the other equation. 3. Solve for the remaining variable.
5.
FLASHCARD QUESTION
Front
How do you solve a system of linear equations using elimination?
Back
1. Align the equations. 2. Multiply one or both equations to obtain opposite coefficients for one variable. 3. Add or subtract the equations to eliminate one variable.
6.
FLASHCARD QUESTION
Front
What does it mean if a system of equations has no solution?
Back
It means that the lines represented by the equations are parallel and never intersect.
7.
FLASHCARD QUESTION
Front
What does it mean if a system of equations has infinite solutions?
Back
It means that the equations represent the same line, and there are countless points of intersection.
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