Question

Determine the values of x on which the function the answer and questions below

Answer 1

In math, you cannot divide by zero, so the x values where it'll make the denominator zero will have a removable discontinuity.

$4x^2-12x$

Let's factor.

$4x(x-3)$

$x=0,3$

That means that the graph will be undefined at $x=0,3$.