Comparing Functions Practice
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the y-intercept?
Back
The y-intercept is the point where a line crosses the y-axis. It is represented as (0, b) where b is the value of y when x = 0.
2.
FLASHCARD QUESTION
Front
Find the slope of the line.
Back
The slope of a line measures its steepness and direction. It is calculated as the change in y divided by the change in x, often represented as m.
3.
FLASHCARD QUESTION
Front
What is the initial value of a graph?
Back
The initial value is the y-coordinate of the point where the graph intersects the y-axis, indicating the starting value of the function when x = 0.
4.
FLASHCARD QUESTION
Front
What advice works in life AND when studying functions?
Back
If you want your relationships to be functional, don't repeat your (e)x's.
5.
FLASHCARD QUESTION
Front
What equation is THE SAME as Total Cost = Variable Cost + Fixed Cost?
Back
The equation y = mx + b represents a linear relationship where y is the total cost, m is the variable cost per unit, x is the number of units, and b is the fixed cost.
6.
FLASHCARD QUESTION
Front
What does the slope of -5/4 indicate about a line?
Back
A slope of -5/4 indicates that for every 4 units you move to the right on the x-axis, the line moves down 5 units on the y-axis, showing a negative relationship.
7.
FLASHCARD QUESTION
Front
How do you determine if a relation is a function?
Back
A relation is a function if each input (x-value) has exactly one output (y-value). This can be tested using the Vertical Line Test.
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