Matt has $10 in income that he devotes entirely towards caffeine purchases, specifically coffee and tea. Tea costs $2/cup and coffee costs $4/cup. Also, tea is subject to a quantity tax of $1/cup, and coffee is subject to a value tax of 0%. What is the slope of Matt's budget constraint if he were to graph it placing cups of tea on the horizontal axis and cups of coffee on the vertical axis?
(Note: Your answer will be negative, so don't forget the minus sign)
(Note: The answer is not necessarily a whole number; round to the nearest hundredth)
(Note: The numbers change between questions, so read them carefully)