Illustrative Math Grade 8 Unit 3 Review
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+5
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the slope-intercept form of a linear equation?
Back
The slope-intercept form of a linear equation is given by the formula 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
2.
FLASHCARD QUESTION
Front
How do you determine the slope from a graph?
Back
The slope can be determined by finding the rise over run between two points on the line. It is calculated as (change in y) / (change in x).
Tags
CCSS.8.EE.B.5
3.
FLASHCARD QUESTION
Front
What does a positive slope indicate about a line on a graph?
Back
A positive slope indicates that as the x-values increase, the y-values also increase, showing a direct relationship.
Tags
CCSS.8.EE.B.5
4.
FLASHCARD QUESTION
Front
What does a negative slope indicate about a line on a graph?
Back
A negative slope indicates that as the x-values increase, the y-values decrease, showing an inverse relationship.
Tags
CCSS.8.EE.B.5
5.
FLASHCARD QUESTION
Front
What is the significance of the y-intercept in a linear equation?
Back
The y-intercept is the point where the line crosses the y-axis, representing the value of y when x is 0.
6.
FLASHCARD QUESTION
Front
How can you write a linear equation from a word problem involving a fixed cost and a variable cost?
Back
Identify the fixed cost as the y-intercept and the variable cost per unit as the slope. The equation will be in the form y = mx + b.
7.
FLASHCARD QUESTION
Front
What is the formula to calculate the total cost from a fixed charge and a variable hourly rate?
Back
Total Cost = Fixed Charge + (Hourly Rate * Number of Hours).
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
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