Math 8 Ch. 4 Part 1 REVIEW
Flashcard
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the point-slope form of a linear equation?
Back
The point-slope form of a linear equation is given by y - y₁ = m(x - x₁), where m is the slope and (x₁, y₁) is a point on the line.
2.
FLASHCARD QUESTION
Front
How do you write the equation of a line given a slope and a y-intercept?
Back
The equation of a line can be written in slope-intercept form as 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
3.
FLASHCARD QUESTION
Front
What is the cost equation for a holiday meal that costs $12.50 per person plus a $30 delivery fee?
Back
The cost equation is y = 30 + 12.5x, where y is the total cost and x is the number of people.
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
4.
FLASHCARD QUESTION
Front
How do you model the descent of an airplane starting at a height of 30,000 feet descending at 2,000 feet per minute?
Back
The equation to model this situation is y = -2000x + 30000, where y is the height in feet and x is the time in minutes.
5.
FLASHCARD QUESTION
Front
How do you convert the equation y + 5 = -3(x - 6) into slope-intercept form?
Back
To convert it, distribute and rearrange: y = -3x + 18 - 5, which simplifies to y = -3x + 13.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
6.
FLASHCARD QUESTION
Front
What does the slope of a line represent in a real-world context?
Back
The slope represents the rate of change of y with respect to x, indicating how much y changes for a unit change in x.
Tags
CCSS.8.EE.B.5
7.
FLASHCARD QUESTION
Front
What is the y-intercept of a linear equation?
Back
The y-intercept is the value of y when x = 0, representing where the line crosses the y-axis.
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