Question

(d) What is domain of f(x) = x(40-2x)^2
Domain of is:

I said it was all reals but that is incorrect?

Answer 1

@Callisto

Answer 2

Do you see anywhere where it's undefined?

Answer 3

Ohh. Yeah it's correct.

Answer 4

Sorry, didn't see your answer.

Answer 5

how come it says it is wrong then?

Answer 6

The answer is wrong.

Answer 7

I am 100% sure it's all x|R .

Answer 8

same here

Answer 9

This is continuous everywhere everywhere by the definition of continuity and there are no discontinuities or asymptotic.