(a) There are no restrictions on the values that x can take in this example, since it is a general question with no practical significance.
(b) Draw up a table of values:
Since `y = 0` when `x = 0` and `x = 1`, we examine what happens between those 2 x-values:
When `x = 1/2, y = -1/8.`
Here is our graph:
Graph of y = x3 − x2, a cubic.