Question

Lisa 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

Answer 1

Which equation best models the relationship between x and y? I think it's y = -5x + 250 but i dont know how to do this.

Answer 2

The +250 part is correct, but she is reading more than 5 pages a week, don't you think?

Answer 3

Yes. So, it's y = -50x + 250? @LegendarySadist

Answer 4

That would be correct.

Answer 5

No problem :)