What is the discontinuity of the function f(x) = the quantity of x squared minus 4 x minus 12, all over x plus 2? (−6, 0) (6, 0) (−2, −8) (2, −4)

The point of discontinuity is where the function is undefined; so with a fractional function if the base is zero the the function is undefined thus being the point of discontinuity.
= undefined

thus when x is -2 the function would be discontinuous

The surface area would be 576 because you multiply all the numbers then multiply that number by 6