2nd Nine Weeks Review (Math 8)
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+7
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a system of linear equations?
Back
A system of linear equations is a set of two or more linear 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
What does it mean for two lines to be perpendicular?
Back
Two lines are perpendicular if their slopes are negative reciprocals of each other, meaning the product of their slopes is -1.
Tags
CCSS.8.EE.B.6
3.
FLASHCARD QUESTION
Front
How do you write the equation of a line given a point and a slope?
Back
Use the point-slope form: y - y1 = m(x - x1), where (x1, y1) is the point and m is the slope.
4.
FLASHCARD QUESTION
Front
What is the slope-intercept form of a linear equation?
Back
The slope-intercept 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
5.
FLASHCARD QUESTION
Front
How do you solve a system of equations using substitution?
Back
1. Solve one equation for one variable. 2. Substitute that expression into the other equation. 3. Solve for the remaining variable.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
FLASHCARD QUESTION
Front
What is the meaning of the y-intercept in a linear equation?
Back
The y-intercept is the point where the line crosses the y-axis, represented by the value of y when x = 0.
7.
FLASHCARD QUESTION
Front
What is the formula for finding the slope between two points?
Back
The slope (m) between two points (x1, y1) and (x2, y2) is calculated as m = (y2 - y1) / (x2 - x1).
Tags
CCSS.8.EE.B.5
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