Cell Phone Cost

							                             Cell Phone Cost

            45
            40
            35
            30
            25
            20
            15
            10
             5


                       0 1     2    3   4   5   6   7   8   9   10




1. The y-intercept of the line is
    A) 0                 C) 5
    B) 15                D) 3

2. The slope of the line is
   A) 3                 C) 5
   B) 1                 D) 1/5

3. The equation of the line is
   A) y = 1/5x – 15    C) y = 1/5x + 15
   B) y = 5x + 15              D) y = x + 3

4. Given the equation of the line NEXT=NOW+4, start at 20, which of the
   following statements is true?
   A)     The slope of the line is ¼ and the y-intercept is 5.
   B)     The slope of the line is 1/4x and the y-intercept is 5.
   C)     The slope of the line is 4 and the y-intercept is 20.
   D)     The slope of the line is 4x and the y-intercept is 20.