Given that a field goal in football is worth 3 points. Let's say that f represents the number of field goals scored and p represent the number of points earned.The function rule that relates the number of field goals, f, and the number of points, p can be defined asp = 3fHere, p is dependent variable, since the number of points earned depends on the number of field goals scored, and f is independent variable, as it is the number of field goals scored.Explanation:The function rule that relates the number of field goals, f, and the number of points, p can be defined asp = 3fHere, p is dependent variable, since the number of points earned depends on the number of field goals scored, and f is independent variable, as it is the number of field goals scored.If a football team scores two field goals, we can find the number of points they would have earned by plugging in 2 for f in the function rule.p = 3f = 3(2) = 6Therefore, the team would have earned 6 points for scoring two field goals. We can use this function rule to find the number of points earned for any given number of field goals by substituting that number in for f and evaluating the expression.In summary, the function rule that relates the number of field goals, f, and the number of points, p is given by p = 3f, where p is the dependent variable and f is the independent variable.