Respuesta :
The following function represents the sale; when y < 3, x = $3.99, when y ≥ 3, x = $2.50
Step-by-step explanation:
Step 1; If 1 or 2 packs of soda are bought the cost of the soda will be $3.99 whereas if 3 packs or are bought, each pack of soda will cost $2.50. So assume that x is the cost of a pack of soda and y equals the number of soda packs that are bought.
Step 2; x is the dependent value while y is the independent value i.e. x's value varies according to y. So if the value of y is 1 or 2, x costs $3.99 per soda pack. When y is 3 or greater i.e 4, 5, 6, ... x costs $2.50. If we represent this information by a function we get,
when y < 3, x = $3.99,
when y ≥ 3, x = $2.50.
