LP 3 Assessment Algebra 1
Flashcard
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the elimination method in solving systems of equations?
Back
The elimination method involves adding or subtracting equations to eliminate one variable, making it easier to solve for the other variable.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
FLASHCARD QUESTION
Front
When can you add two equations together in the elimination method?
Back
You can add two equations together in the elimination method when the coefficients of one variable are opposites, allowing for that variable to be eliminated.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
FLASHCARD QUESTION
Front
What does it mean for a point to be a solution to a system of equations?
Back
A point (x,y) is a solution to a system of equations if it satisfies all equations in the system, meaning it makes all equations true when substituted.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
FLASHCARD QUESTION
Front
How do you determine if subtracting one equation from another will eliminate a variable?
Back
You determine if subtracting one equation from another will eliminate a variable by checking if the coefficients of that variable are the same or opposites.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
FLASHCARD QUESTION
Front
What is the first step in solving a system of equations using elimination?
Back
The first step is to align the equations and decide whether to add or subtract them based on the coefficients of the variables.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
FLASHCARD QUESTION
Front
What is the result of adding the equations -8x + 9y = -25 and 5x - 9y = 19?
Back
The result is -3x = -6.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
FLASHCARD QUESTION
Front
What is the solution to the system of equations 3x - 2y = -13 and x + 2y = 17 using elimination?
Back
The solution is (1, 8).
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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