To model the total cost \( y \) for \( x \) pounds of blueberries picked at Blueberry Hill, we need to account for both the entry fee and the cost per round of blueberries picked.
- The entry fee to the patch is $5.
- The cost per pound of blueberries is $4.
The total cost can be expressed as:
\[ y = 5 + 4x \]
Where:
- \( y \) is the total cost,
- \( x \) is the number of pounds of blueberries picked.
So, the equation \( y = 5 + 4x \) models the total cost for picking \( x \) pounds of blueberries.