Final answer:
The constant of proportionality in assists per goal for Maddie is calculated by dividing her total assists by goals, resulting in 2 assists per goal.
Step-by-step explanation:
To find the constant of proportionality in assists per goal, we divide the total number of assists by the total number of goals. Maddie has 26 assists and 13 goals. Therefore, the constant of proportionality is 26 assists ÷ 13 goals = 2 assists per goal.
The correct answer is b) 2, which represents the constant of proportionality for assists per goal in this scenario.