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December 3, 2013 Tuesday Please have homework out on desk
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Algebra 1 PAP HW p. 296 3-14 3. y=3x-2 4. y=2x-9 5. y=-5x-13 6. y=-2x+5 7. y=-3/4 x +2 8. y=1/2 x – 9.5 9. y=-2x+9 10. y=18x+45 18 should be the slope 11. y=3x+1 12. y=7x-19 13.y=-2/5 x -1 14. y=2x+12
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Warm Up Write the equation of the line that passes through f(2)=7 and f(4)=6
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Take Away Idea There is an easier way to write the equation of a line when the y-intercept is not given.
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NOTES 5.3 Write Linear Equations in Point- Slope Form Point Slope Form y-y1=m(x-x1)
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Write the equation of a line in point- slope form that passes through the point (4,-3) and has a slope of 2. (4, -3) (x1,y1) m=2 y- y1=m(x-x1)
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Practice (given slope and 1 point) Write the equation of the line IN POINT-SLOPE FORM that passes through the point (-1,4) and has a slope of -2.
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Practice (given 2 points) Write the equation of the line IN POINT-SLOPE FORM that passes through (-1,3) and (1,1)
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Practice (2 points) Write the equation of the line IN POINT-SLOPE FORM going through (2,3) and (4,4)
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Classwork DO ON A SEPARATE SHEET OF PAPER Write the following equations in SLOPE- INTERCEPT FORM 1. 2x + y = 12 2. 4x – 2y = 6 3. 3y – 2x = 9 4. -4y + 5x = -10
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