Question 1
Consider the lines graphed above. These two lines have coeficients in the integers. If S is the set of all lines whose x and y intercepts are also integers, which line(s) shown would be in set S?
Question 2
Suppose set T is the set of all lines whose coefficients are the integers [-10, 10]. How many elements would the set T have?
Question 3
Suppose set R is the set of all linear functions whose coefficients are the integers [-10, 10] and whose x and y intercepts are also integers. How many elements would set R have. List all the elements of set R.