y=mx + b 4.3 Linear Equations Slope-Intercept Form y = 2x - 5

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Presentation transcript:

y=mx + b 4.3 Linear Equations Slope-Intercept Form y = 2x - 5 m = slope and b = y-intercept (where the line crosses the y-axis) y = 2x - 5 slope = 2 and the y-intercept = -5 m = -2/3 and b = 7

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Write in y = mx + b form and then determine the slope and y-intercept. 2x + 5y = 10 - 2x - 2x 5y = -2x + 10 m = -2/5 5 5 5 b = 2

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(Bank, Silver Dollar, Grape) Slope-intercept form 3x + 4y = 12 4y = - 3x +12 y = - 3/4x + 3 b = 3 m = -3/4 Homework #29 Worksheets (Bank, Silver Dollar, Grape)