The intercept on the horizontal axis shows how much
cheese the consumer could buy if she bought only cheese;
with income of $3,000 and the price of cheese $6 a pound,
she could buy 500 pounds of cheese. The intercept on the
vertical axis shows how much wine the consumer could
buy if she bought only wine; with income of $3,000 and
the price of wine $3 a glass, she could buy 1,000 glasses
of wine. With cheese on the horizontal axis and wine on
the vertical axis, the budget constraint has a slope of -
1,000/500 = -2.