Question

If x and y are positive integers, what are all the

solutions (x, y) of the equation 3x + 2y = 11?
(A) (1,4) only
(B) (3,1) only
(C) (1,4) and (2,2)
(D) (1,4) and (3,1)
(E) (2,2) and (3,1)

Answer 1

D: Points (1,4) and (3,1) are on the line

Explanation:

See attached graph.