The data below represent commute times (in minutes) and scores on a well-being survey. complete parts (a) through (d) below. commute time (minutes), x 5 15 30 40 60 84 105 well-being index score, y 69.1 68.0 66.8 66.1 64.9 64.1 62.0 (a) find the least-squares regression line treating the commute time, x, as the explanatory variable and the index score, y, as the response variable.

The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x