Macroeconomics

I need help with the following assignment, it is due at 11:59, it doesnt have to be very long just half a page for each question and there are 3 and if you need pictures of the book for the references i will be more than happy to send them. thank you
"Your assignment is worth 6 pts, and each of the questions must have at least a half of page of writing supported  by more than the textbook refererence, it must come from the FNU  Library. In addition your answers must prescribe to APA format.. You  must submit a cover page, each question in a page by itself, and your  references page must be also in a page by itself.  And, please do not  forget to reference your in-text.  Lastly your assignment must be  submitted via "Safeassign" in order to obtain your max points your work  must be original in at least 70%. 
Answer the following questions:
- Explain the effect of an increase in consumer income on the demand for a good.
- In your own words, explain the logic of the income-expenditure model.  What determines the amount of real GDP demanded?
- Define the economy's potential output. What factors help determine potential output?"