The accompanying data are the length (in centimeters) and girths (in centimeters) of 12 harbor seals. Find the equation of the regression line. Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y, explain why not.

(a) x=140c Length, x Girth, y 138 107 168 129 151 116 145 106 160 125 160 120 124 102 136 103 155 121 148 111 148 106 146 110 The equation of the regression line is y = ____ x+ ___ . (Round to two decimal places asneeded.)

(b) x=172cm

(c) x=164cm

(d) x=158cm