Linear Equations from Tables and Graphs

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•
Mathematics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a linear equation?
Back
A linear equation is an equation that makes a straight line when graphed. It can be written in the form y = mx + b, where m is the slope and b is the y-intercept.
2.
FLASHCARD QUESTION
Front
What does the slope of a line represent?
Back
The slope of a line represents the rate of change of the dependent variable (y) with respect to the independent variable (x). It indicates how much y changes for a unit change in x.
3.
FLASHCARD QUESTION
Front
How do you find the slope from a table of values?
Back
To find the slope from a table, calculate the change in y (rise) divided by the change in x (run) between two points: slope = (y2 - y1) / (x2 - x1).
4.
FLASHCARD QUESTION
Front
What is the y-intercept in a linear equation?
Back
The y-intercept is the value of y when x is 0. It is the point where the line crosses the y-axis.
5.
FLASHCARD QUESTION
Front
How can you write an equation from a graph?
Back
To write an equation from a graph, identify the slope and y-intercept. Use the slope-intercept form y = mx + b, substituting m for the slope and b for the y-intercept.
6.
FLASHCARD QUESTION
Front
What does the term 'rate of change' mean?
Back
The rate of change refers to how much one quantity changes in relation to another quantity. In linear equations, it is represented by the slope.
7.
FLASHCARD QUESTION
Front
How do you determine if an equation represents a linear relationship?
Back
An equation represents a linear relationship if it can be written in the form y = mx + b, where m and b are constants.
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