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13 April, 00:11

John reads an equal number of pages of a book every week. The graph below shows the number of pages of the book left to read, y, after x weeks:

A graph titled Johns Book Reading shows Number of Weeks on the x axis and Number of Pages Left on the y axis. The scale on the x axis shows numbers from 0 to 6 at increments of 1, and the scale on the y axis shows numbers from 0 to 175 at increments of 25. A straight line joins the ordered pairs 0, 125 and 1, 100 and 2, 75 and 3, 50 and 4, 25 and 5, 0.

Which equation best models the relationship between x and y?

y = - 5x + 25

y = - 25x + 125

y = - 25x + 175

y = - 5x + 125

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Answers (2)
  1. 13 April, 00:19
    0
    the answer is

    y = - 25x + 125
  2. 13 April, 00:33
    0
    John reads an equal number of pages of a book every week. The graph below shows the number of pages of the book left to read, y, after x weeks. The equation best models the relationship between x and y is y = - 25x + 175
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