
Ch. 8 Test: Systems of Linear Equations
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a system of linear equations?
Back
A set of two or more linear equations with the same variables.
2.
FLASHCARD QUESTION
Front
What does it mean to solve a system of equations by elimination?
Back
It means to eliminate one variable by adding or subtracting the equations, making it easier to solve for the other variable.
3.
FLASHCARD QUESTION
Front
What is the graphical representation of a system of equations with no solution?
Back
The lines representing the equations are parallel and never intersect.
4.
FLASHCARD QUESTION
Front
What does it mean if two equations represent the same line?
Back
It means there are infinite solutions, as every point on the line is a solution.
5.
FLASHCARD QUESTION
Front
How do you determine if a system of equations has one solution?
Back
If the lines intersect at exactly one point, the system has one solution.
6.
FLASHCARD QUESTION
Front
What is the substitution method in solving systems of equations?
Back
It involves solving one equation for one variable and substituting that expression into the other equation.
7.
FLASHCARD QUESTION
Front
What does the x represent in the equation y = mx + b?
Back
The x represents the independent variable, often the input value in a function.
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