ROUND ALL ANSWERS TO THE NEAREST TENTH UNLESS STATED OTHERWISE PART ONE - Multiple Choice (K I mark each) Identify the letter of the choice that best completes the statement or answers the question. 1) The slope of a tangent line always tells us a) an instantaneoun rate of change b) whether the graph is increasing or decreasing at the point oftangeney c) all of the above (1) none of the above 2) An average rate of change is given by a) the y-intercept of a secant line c) the reciprocal of a secant line's slope b) the slope of a seeant line d) a graph's local maxima and minima