5 2 writing the equation of a line using slope intercept form n.
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5.2 Writing the Equation of a Line Using slope intercept form - PowerPoint PPT Presentation


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5.2 Writing the Equation of a Line Using slope intercept form. Review of Slope-Intercept Form. Name the slope and y-intercept of each equation :. y = -4 x + 3 y = 5 – x 8 x + y = 4 x - 2 y =10 y = x y = 5. m = -4, b =3 m = - , b = 5

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review of slope intercept form
Review of Slope-Intercept Form

Name the slope and y-intercept of each equation:

y = -4x + 3

y = 5 – x

8x + y =

4x - 2y =10

y = x

y = 5

m = -4, b =3

m = - , b = 5

Rewrite as y = -8x , m = -8, b =

Rewrite as y = 2x - 5, m = 2, b = -5

Rewrite as y = x + 0, m = , b = 0

Rewrite as y = 0x + 5, m = 0, b = 5

example 2

-2

+1

x

y

Example 2
  • b = 1
  • m =
  • y = x + 1
example 3

x

y

Example 3
  • b = 4
  • m = 0/1= 0
  • y = 0x + 4, y = 4
word problems with slope int
Word Problems with slope-Int
  • A carnival charges $2.50 per ride after an entrance fee. You paid a total of $22.50 after 6 rides. Write an equation that gives the total cost as a function of the number of rides. Find the total cost for 15 yards.
another word problem
Another word problem
  • A BMX race track charges a membership fee and an entry fee per race. One racer paid a total of $76 after 3 races. Another racer paid a total of $124 after 7 races.
  • How much does the track membership cost?
  • What is the entry fee per race?
  • Write an equation that gives the total cost as a function of the number of races entered.