Slope-Intercept Form of a Line y = mx + b This is the slope-intercept form of a linear equation...
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Transcript of Slope-Intercept Form of a Line y = mx + b This is the slope-intercept form of a linear equation...
Slope-Intercept Form of a Line
y = mx + bThis is the slope-intercept form of a linear equation
where
m = the slope of the lineb = the y-intercept (0, b)
Example
y = 2x + 3
Slope-Intercept Form of a Line
y = mx + bThis is the slope-intercept form of a linear equation
where
m = the slope of the lineb = the y-intercept (0, b)
Exampley = 3x – 4
The slope is 3. The y-intercept is –4 i.e. (0, -4).
Slope-Intercept Form of a Line
y = mx + bThis is the slope-intercept form of a linear equation
where
m = the slope of the lineb = the y-intercept (0, b)
Example 3 18 4
y x
The slope is 3.8
The y-intercept is 10, .4
Slope-Intercept Form of a Line
Slope-Intercept Form of a LineWrite the equation 3x + 4y = 8 in slope-intercept form.
Identify the slope and the y-intercept.
Slope-Intercept Form of a LineWrite the equation 6x + y = 1 in slope-intercept form.
Identify the slope and the y-intercept.
Slope-Intercept Form of a Line
Write the equation in slope-intercept form.
Identify the slope and the y-intercept.
Slope-Intercept Form of a LineWrite the equation –x – y – 6 = 1 in slope-intercept form.
Identify the slope and the y-intercept.
Slope-Intercept Form of a LineWrite the equation 3(x + y) = 9 in slope-intercept form.
Identify the slope and the y-intercept.
Slope-Intercept Form of a LineExample:Find the equation of the line with slope and
y-intercept (0, 5).
23
5)23
(y x
2 53
y x
23
m slope: 5by-intercept:
y mx b