If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

# Linear equations word problem: file transfer

Sal finds the y-intercept and the slope of a linear relationship representing a top secret file transfer. He then interprets what the y-intercept and the slope mean in that context.

## Want to join the conversation?

• I can't find a video to help me solve this. This is the video that popped up when I searched it,but it was no help.
A charity organization is having a fundraiser.P(n)models the fundraiser's profit (in dollars) if n tickets are sold. A negative profit means the expenses exceeded the income from tickets.
P(n)=70n−1500
What are the expenses of the fundraiser?
• You are never going to find a video that exactly matches your problem. It is asking you to think about the equation and how it relates to income from the tickets, expenses and profits. The problem tells you the profit is negative if the income is not large enough. So, the expenses must be the part of the equation that would make the profit be negative, and the income is the portion of the equation that would increase the profits.
Do you think you can figure it out now?
Give it a try. Comment back if you are still stuck, but tell me what you think.
• Morgan,

You can search the site for quadratic equations. In general, I would expect you would find more regarding non-linear function under Geometry.
(1 vote)
• Anumeha mows lawns. She charges an initial fee and a constant fee for each hour of work.
The variable fff models Anumeha's fee (in dollars) for working ttt hours.
f=6+12tf=6+12tf, equals, 6, plus, 12, t
What is Anumeha's initial fee?
(1 vote)
• I kinda get it but all the way