... 2.1 14 For f(x) = – x2, find the slope of the secant line connecting the points whose xcoordinates are x = –4 and x = –3.9 Then use calculus to find the slope of the line that is tangent to the ... points (x, y) on the graph of the function y 5x with the property that the tangent to the graph at (x, y) passes through the point (4, 0) A) (0, 0) and (4, 80) B) (4, 80) C) (0, 0) and (8, 320) ... 35 Find the equation of the tangent to the graph of f ( x) x x at the point (1, 12) Ans: y = 2x + Difficulty: moderate Section: 2.2 36 Find the equation of the tangent line to the graph...