Solving by Substitution (CW)

Flashcard
•
Mathematics
•
7th - 9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the substitution method in solving systems of equations?
Back
A method where one equation is solved for one variable, and then substituted into the other equation.
2.
FLASHCARD QUESTION
Front
What does it mean for two lines to intersect?
Back
It means they have a common solution, which is the point where they meet on a graph.
3.
FLASHCARD QUESTION
Front
What is a linear equation?
Back
An equation that makes a straight line when graphed, typically in the form y = mx + b.
4.
FLASHCARD QUESTION
Front
What is the first step in solving a system of equations by substitution?
Back
Make sure at least one equation is solved for one variable.
5.
FLASHCARD QUESTION
Front
What is the solution of a linear system?
Back
The point where the graphs of the equations intersect.
6.
FLASHCARD QUESTION
Front
If y = 2x + 3, what is y when x = 1?
Back
y = 5.
7.
FLASHCARD QUESTION
Front
What does it mean if a system of equations has no solution?
Back
The lines are parallel and never intersect.
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