My 7th grade daughter is having trouble with basic algebra. She is just not that good with math and it has been... well, it has been a very long time for me. I was able to figure out all of the equation type questions, but I am stumped by a couple of others. The setup for the problems is:

The school drama club is performing a play at the community center. Props cost $250 and the theater is charging $1,25 for each ticket sold. So, the total cost C for the drama club to put on the play is C = 1.25n + 250, where n is the total number of tickets sold. Tickets are $4 each, so the total amount collected from sales is T = 4n.

1) What information does the y-intercept tell you about the income and cost for the tickets?

2) What information does the rate of change tell you about the income and cost for the tickets?

Coming up with equations to answer the rest of the questions was easy. I am drawing a blank on these though.

Thanks!