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Published byJoella Neal Modified over 8 years ago

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When an equation is in slope-intercept form:

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Examples: Identify the slope of the line and the y- intercept for each equation. 1. y = 3x +2 2. y = ½ x – 3 3. y = x –94. y = 6 - x 3 2 ½ -3 1 -9 6

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Ex.1: What is the equation of the line in slope-intercept form? m = b = -2 Using a Graph

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Ex. 2: What is the equation of the line in slope-intercept form? m = b = 3

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Graphing linear equations using slope- intercept form (y = mx + b) Step 1: Graph the y-intercept. Step 2: Using the slope, find another point. Step 3: Draw a line through the two points.

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Ex. 1 Graph the equation: m = b = 1

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Ex. 2 Graph the equation: m = b = -4

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Ex. 3 Graph the equation: m = b = 2

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Ex. 4 Graph the equation: m = b = 6

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Slope Intercept Form: Let’s look at a graph of a linear equation in this form. What does the slope tell you about a line? How does changing the slope affect your graph? What is the y- intercept? What does it tell you about the line? How does changing the y – intercept affect you graph?

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