Question

Is y=x(x-1) a function

Answer 1

Yes.

Explanation:

y = x(x - 1) is a function.

If we draw a graph of the expression we get a parabola which is shaped like a U.

The graph passes the vertical line test for s function (that is - any vertical line drawn through the curve passes through the curve at only one point).

Answer 2

Yes it is a function
Y=x(x-1)
X(x-1)
X to the 2nd power -1x
Hope that’s helps