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Published byRalf Carson Modified over 9 years ago
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6.2: Slope-Intercept Form
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Linear Equations An equation whose graph is a line is a linear equation. Ex. y = 3x – 4 The y-intercept is the y-coordinate of the point where the line crosses the y-axis. The slope-intercept form of a linear equation is y=mx + b
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Finding the Slope & Y-Intercept Ex. y = 3x – 5 Ex. y = -2x + 1 Ex. y = 7/6x – ¾
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Writing the Equation Ex. Write the equation when the slope is 2 and the y-intercept is -8. Ex. Write the equation given:
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Graphing Graph y = 3x – 1
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Graphing
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The base pay of a water delivery person is $210 per week. He also earns 20% commission on any sale he makes. The equation t = 210 + 0.2s relates total earnings to sales, s. Graph the equation.
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Assignment P. 294 3-39 every 3 rd problem.
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