PLEASE HELP I WILL GIVE 20 POINTS !!!!!!!!!!!!!!!!!!!!!!!!!!

A pop star is coming for a live concert in your area. The ticket proceeds will benefit a nonprofit organization helping underprivileged children interested in music educaton. They would like to raise $1,500. Stage-level seats are on sale for $10 each and balcony-level seats are on sale for $5 each. How many of each seat type would need to be sold to reach the goal of $1,500? You can set up an equation to help solve this problem. Translate the situation above by letting x represent the number of stage-level seats and by letting y represent the number of balcony-level seats.

What is slope and how is it determined from a graph?
How do you determine the intercepts from an equation or graph?
How can linear equations and functions be written and graphed?