A.2I & A.3D Practice
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+6
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a system of equations?
Back
A system of equations is a set of two or more equations with the same variables. The solution is the point(s) where the equations intersect.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
FLASHCARD QUESTION
Front
How do you represent the cost of a pizza with toppings as a linear equation?
Back
If a pizza costs $6.80 and each topping costs $0.90, the equation is: y = 6.80 + 0.90x, where y is the total cost and x is the number of toppings.
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
3.
FLASHCARD QUESTION
Front
What is the purpose of solving a system 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
4.
FLASHCARD QUESTION
Front
How can you represent Nancy's grocery purchases with equations?
Back
Let x be the price of an apple and y be the price of a banana. The equations are: 4x + 6y = 13 (Monday) and 3x + 7y = 13.5 (Wednesday).
Tags
CCSS.8.EE.C.8C
5.
FLASHCARD QUESTION
Front
What does it mean for two lines to intersect in a system of equations?
Back
It means that there is a common solution for the variables, which is the point where the two lines meet on a graph.
Tags
CCSS.8.EE.C.8A
6.
FLASHCARD QUESTION
Front
What is the slope-intercept form of a linear equation?
Back
The slope-intercept form is given by 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
7.
FLASHCARD QUESTION
Front
How do you find the slope of a line given two points?
Back
The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the coordinates of the two points.
Tags
CCSS.8.EE.B.5
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