Functions and Slopes - STAAR Review
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.
2.
FLASHCARD QUESTION
Front
What is the slope of a line?
Back
The slope of a line is a measure of its steepness, calculated as the change in the y-coordinate divided by the change in the x-coordinate (rise/run).
3.
FLASHCARD QUESTION
Front
How do you find the slope from two points?
Back
To find the slope (m) from two points (x1, y1) and (x2, y2), use the formula: m = (y2 - y1) / (x2 - x1).
4.
FLASHCARD QUESTION
Front
What does a positive slope indicate?
Back
A positive slope indicates that as the x-value increases, the y-value also increases, showing an upward trend.
5.
FLASHCARD QUESTION
Front
What does a negative slope indicate?
Back
A negative slope indicates that as the x-value increases, the y-value decreases, showing a downward trend.
6.
FLASHCARD QUESTION
Front
What is the slope-intercept form of a linear equation?
Back
The slope-intercept form of a linear equation is y = mx + b, where m is the slope and b is the y-intercept.
7.
FLASHCARD QUESTION
Front
What is the y-intercept?
Back
The y-intercept is the point where the line crosses the y-axis, represented by the value of y when x = 0.
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