Unit 3 Review
Flashcard
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula to calculate the distance between two points (x1, y1) and (x2, y2)?
Back
Distance = √((x2 - x1)² + (y2 - y1)²)
2.
FLASHCARD QUESTION
Front
What does the slope (m) represent in a linear equation?
Back
The slope represents the rate of change of y with respect to x.
3.
FLASHCARD QUESTION
Front
What is the y-intercept (b) in the linear equation y = mx + b?
Back
The y-intercept is the value of y when x = 0.
4.
FLASHCARD QUESTION
Front
If a taxi service charges a flat fee plus a per-mile charge, how can you express the total cost (y) in terms of miles (x)?
Back
y = mx + b, where m is the cost per mile and b is the flat fee.
5.
FLASHCARD QUESTION
Front
What is the distance between the points (3, 4) and (7, 1)?
Back
Distance = √((7 - 3)² + (1 - 4)²) = √(16 + 9) = √25 = 5.
6.
FLASHCARD QUESTION
Front
In the equation y = 2x + 5, what does the number 5 represent?
Back
The number 5 represents the y-intercept.
7.
FLASHCARD QUESTION
Front
What is the meaning of a slope of 0 in a linear equation?
Back
A slope of 0 indicates a horizontal line, meaning y does not change as x changes.
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