Question

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

NOT C

Answer 1

@dude

Answer 2

@bonez

Answer 3

Take a screenshot of the table, you should be able to copy-paste

Answer 4

From the looks of it, it does not start at 175, which was why it is not C

To find the +number part of the equation, look at when x=0