The equation below represents function a and the graph represents function b: function a f(x) = 6x - 1 function b graph of line going through ordered pairs 1, 4 and negative 1, negative 2 and negative 2, negative 5 which equation best compares the slopes of the two functions?   a. slope of function b = 2 x slope of function a. b. slope of function a = slope of function bc. slope of function a = 2 x slope of function bd. slope of function b = - slope of function a