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TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
TechMathI - Slope intercept form
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TechMathI - Slope intercept form

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Transcript

  • 1. Bell Ringer Evaluate each expression. 1) .25x + 2 for x = 16 2) -2x – 5 for x = 3 Solve each equation for y. 3) y – 5 = 4x 4) 2y + 6 = -8x
  • 2. What is a linear equation ? An equation whose graph is a line. Slope-Intercept Form
  • 3. What is a y – intercept ? Where the line crosses the y – axis. Slope-Intercept Form y = m x + b where m = slope b = y-intercept
  • 4. Slope-Intercept Form y = m x + b What is the slope and y-intercept of: y = 4x + 2 y = -2x - 1
  • 5. What is the slope and y-intercept of: y = 3x – 5 y = -2x y = 4/5x + 5 You try!
  • 6. Write an equation of the line with: m = 3 and y-intercept of 7 m = -1 and y-intercept of -2
  • 7. Write an equation of the line with the following slope and y – intercept:
    • m = -.5, y - intercept = 3
    • m = 1, y - intercept = -1
    • m = 2/3, y - intercept = 0
    You try!
  • 8. (0,2) and (4,-1) y-intercept is 2
  • 9. (-2,2) and (4, 4) y-intercept is -2
  • 10. Find the slope given your two points. Then write an equation in slope-intercept form using the y-intercept. (-1,5) and (3,-3) y – intercept: 0 You try! (3,2) (4,6) y – intercept: 1
  • 11. Graphing with slope-intercept form. y = 3x – 1 m = b = Your y-intercept can be written as an ordered pair.
  • 12. Graphing with slope-intercept form. y = x – 3 m = b = You try! y = -1/2x + 2 m = b =
  • 13. Homework

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