John Q. Public spends all of his income on tacos and hot dogs. Draw his budget line

Question:

John Q. Public spends all of his income on tacos and hot dogs. Draw his budget line under several conditions:
a. His income is $100, and one taco and one hot dog each cost $2.
b. His income is $150, and the two prices remain the same.
c. His income is $100, hot dogs cost $2 each, and tacos cost $2.50 each.