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Graphing Lines by Slope-Intercept

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Videos, worksheets, and solutions to help Grade 7 students learn how to graph lines using the slope-intercept method.



 

The Slope-Intercept Equation
The equation y = mx + b is called the slope-intercept form of a line.
The equation represents a line where m = slope and b = y-intercept (0, b)

The following diagrams show how to graph a line using the slope-intercept method. Scroll down the page for more examples and solutions.

Graph using slope-intercept method




How to graph a linear equation given in slope intercept form?
Examples:
Identify the slope and y-intercept. Graph.
a) y = -2/3 x + 1
b) y = 5x - 2
c) y = x
d) 3x - 2y = 8
How to graph a line in slope intercept form with a negative fractional slope and a negative y-intercept?
Example:
Graph using slope-intercept form
y = -2/3 x - 5
How to graph a line in slope intercept form with a negative integer slope and a positive integer y-intercept?
Example:
Graph using slope-intercept form
y = -2x + 5
How to graph a line in slope intercept form with a positive integer slope and a negative y-intercept?
Example:
Graph using slope-intercept form
y = 3x - 2

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