Unit Test 3A
Flashcard
•
Mathematics
•
9th Grade
•
Hard
+5
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a system of equations?
Back
A set of two or more equations with the same variables. Solutions are the values that satisfy all equations simultaneously.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
FLASHCARD QUESTION
Front
What is the elimination method in solving systems of equations?
Back
A method where one equation is manipulated to eliminate one variable, allowing for the solution of the remaining variable.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
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 that expression is substituted into the other equation.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
FLASHCARD QUESTION
Front
What does it mean if a system of equations has infinitely many solutions?
Back
It means that the equations represent the same line, and there are countless points that satisfy both equations.
Tags
CCSS.8.EE.C.8A
5.
FLASHCARD QUESTION
Front
What does it mean if a system of equations has no solution?
Back
It means that the equations represent parallel lines that never intersect.
Tags
CCSS.8.EE.C.8A
6.
FLASHCARD QUESTION
Front
How do you graph a linear equation?
Back
Identify the y-intercept and slope, plot the y-intercept on the graph, and use the slope to find another point.
7.
FLASHCARD QUESTION
Front
What is the slope-intercept form of a linear equation?
Back
The form is y = mx + b, where m is the slope and b is the y-intercept.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
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