Finite Chapter 1.3

# Finite Chapter 1.3 - 1.3 Linear Functions 4 Find the...

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Math 120 SP08 SBrodnick 1 1 1.3 : Linear Functions 2 1.3: Linear Functions * In the equation of a line, y = mx + b, m is the b is the * Recall : m = = = rise run change in y change in x y 2 – y 1 x 2 – x 1 (x 1 , y 1 ) and (x 2 , y 2 ) are points on the line slope y-intercept 3 Examples : Sketch the graph of 1. y = ¾x - 1 2. 4y + 2x = 8 3. y = 5 4. x = -1 Compute slope of the line through 5. (1, 2) and (8, 3) 6. (⅛, 2) and (⅛, 3) 7. (-3.1, -0.4) and (2.5, -1.9) 8. (5, 0.2) and (-4, 0.2)
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Unformatted text preview: 1.3: Linear Functions 4 Find the equation of the line 9. through (2, -3) with slope -½ 10. through (-5, -4) with slope 3 11. through (1, 6) and (3, 9) * Recall : // lines have slopes that are lines have slopes that are opposite reciprocals of each other Examples : 12. through (-3, 6) and parallel to 5x – 2y = 8 13. through (2, -1) and perpendicular to -x - 4y = 12 1.3: Linear Functions equal T...
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