Answer:
The function y = 75 - 4x models the amount of money Sabrina has left after buying pastries.
Explanation:
Each part of the function has a specific meaning:
y: represents the amount of money Sabrina has left, measured in dollars.
75: represents the original amount of money Sabrina had before buying pastries.
-4x: represents the amount of money Sabrina spent on pastries, where x is the number of pastries she bought. The negative sign indicates that this is a subtraction, so the more pastries Sabrina buys, the more money she spends and the less money she has left.
So the function y = 75 - 4x tells us that for each pastry Sabrina buys, the amount of money she has left decreases by 4 dollars. To find the amount of money Sabrina has left after buying x pastries, we can plug in x into the equation and solve for y.