Find the polynomial of degree 3 [a polynomial of the form f(t) = a + bt + ct2 + d t3] whose graph goes through the points (0, 1), (1, 0), ( 1.0), and (2, 15). Sketch the graph of this cubic.

L25 - 2 4 4 3 ex. Find the intervals on which f(x)= x − 3 x is increasing and decreasing.