Hi, i have a maths assignment i am having trouble with, it is due very soon, and i dont want to lose marks for it. I hope you can help.

Here is the problem.

Nella is an artist who loves to decorate terracotta pots. She decides to set up a stall at the local community market selling these. She completes some thorough research before setting up the stall and determines that the relationship between the selling prove and the number of pots sold is linear. Nella estimates that id she sells them for $8, she would sell 50 pots per day, but if the price were increased to $12, she would only sell 25 pots.

Find a linear equation (i.e. a model) to represent the number of pots sold (n) in terms of the selling price (p) in dollars.