Question

At the beginning of the school year, teachers

have 240,000 sheets of copier paper to use. If
about 2,000 sheets of paper are used each day
during a school year, which equation best
describes s, the number of sheets that are left
after d days of school? Write the linear model
in slope-intercept form.

Answer 1

`s=-2000d+240000`

Explanation:

Given:

Initial number of sheets,
`s_(o)=240000`

Sheets used per day = 2000

∴ Sheets used in
`d` days,
`s_(d)=2000d`

Therefore, sheets left after
`d` days is given as:

`s=s_(o)-s_(d)\\s=240000-2000d\\s=-2000d+240000`

Therefore, the number of sheets that are left after
`d` days of school in slope-intercept form is
`s=-2000d+240000`, where, slope is -2000 and y-intercept is 240000.