Find all points(x, y)on the graph of g(x)=(x^3/3)-(3/2) x^2 + 1 with tangent lines//L : 8x - 2y = 1.

CH3.3 The Derivative as a Function Ex62
數學系卡安很閒 所以決定拯救沒辦法用slader和chegg的莘莘學子
Find all points (x, y) on the graph of g(x) = (1/3)* x^3 - (3/2) x^2 + 1 with
tangent lines parallel to the line 8x - 2y = 1.