Substitution
Flashcard
•
Mathematics
•
9th Grade
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is substitution in solving systems of equations?
Back
Substitution is a method used to solve systems of equations by replacing one variable with an expression derived from another equation.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
FLASHCARD QUESTION
Front
What is the first step in solving a system of equations by substitution?
Back
The first step is to solve one of the equations for one variable in terms of the other variable.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
FLASHCARD QUESTION
Front
How do you substitute a variable in an equation?
Back
To substitute a variable, replace the variable in the equation with the expression that you found from another equation.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
FLASHCARD QUESTION
Front
What does it mean to solve for y in terms of x?
Back
It means to express y as a function of x, typically in the form y = mx + b.
Tags
CCSS.6.EE.C.9
5.
FLASHCARD QUESTION
Front
What is the purpose of solving systems of equations?
Back
The purpose is to find the values of the variables that satisfy all equations in the system simultaneously.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
FLASHCARD QUESTION
Front
What is an example of a system of equations?
Back
y = 2x + 3 and y = -x + 1.
Tags
CCSS.8.EE.C.8B
7.
FLASHCARD QUESTION
Front
What is the solution to the system y = 2x + 3 and y = -x + 1?
Back
The solution is the point where the two lines intersect, which can be found by substituting one equation into the other.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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