Bill is buying apples and tomatoes from the grocery store. The apples cost $1.00 per pound, and tomatoes cost $0.50 per pound. He creates a graph that shows all the combinations of pounds of apples and pounds of tomatoes that he can buy for $5.00. He graphs pounds of apples on the x-axis and pounds of tomatoes on the y-axis. What is the x-intercept of Bill's graph? Group of answer choices