Exercise | Wiskunde op Tilburg University

The following graph belongs to the function

$f(x)$ . For which values of

$x$ is the function increasing?

Antwoord 1 correct

Correct

Antwoord 2 optie

$x\leq 0$

Antwoord 2 correct

Fout

Antwoord 3 optie

$x<0$

Antwoord 3 correct

Fout

Antwoord 4 optie

The correct answer is not among the other options.

Antwoord 4 correct

Fout

Antwoord 1 optie

$x\leq 0$ and

$x \geq 1$

Antwoord 1 feedback

Correct: On both intervals it holds that

$f(x+\Delta x) \geq f(x)$ for every

$x$ in the interval

$\Delta x>0$ .

Go on.

Antwoord 2 feedback

Wrong: Increasing is defined non-strict.

See Monotonicity.

Antwoord 3 feedback

Wrong: Increasing is defined non-strict.

See Monotonicity.

Antwoord 4 feedback

Wrong: The correct answer is among them.

Try again.