Final answer:
The slope tells us the rate at which Carlos's score increases per minute of play.
Step-by-step explanation:
The slope of a line is a value that describes the rate of change between the independent and dependent variables. It tells us how the dependent variable (y) changes for every one-unit increase in the independent (x) variable, on average. In this context, the slope can tell us the rate at which Carlos's score increases or decreases for every additional minute of play. So, OPTION 1: The rate at which the score increases per minute of play is the correct answer.