8) Find the exact answers to following questions. DO NOT give decimal approximations a) Find x so the distance between (-6, -2) and (x, -10) is 10. b) Find the point where the tangent line to y = x at x = 0.6 crosses the x-axis. c) Find the slope of the tangent line to the curve y = 4 sin x at the point (= , 2) d) The equation of the tangent line can be written in the form y = mx + b by using the slope found in part (c). Find b in the above tangent line