Consider the function f(x) = 6x - 2 and the point P(2, 8) on the graph f. Find the secant lines through P(2, 8) and Q(x, f(x) ) for a values of 3 ,2.5 , and 1.5 . Part 1 Slope of the Secant line at x value 3 is m1 = Slope of the Secant line at a value 2.5 is m2 = Slope of the Secant line at x value 1.5 is m3 =