Exercise | Wiskunde op Tilburg University

Determine the point of intersection of the graph of

$y(x)=8x-3$ and the graph of

$z(x)=-2x+2$ .

Antwoord 1 correct

Correct

Antwoord 2 optie

$\frac{1}{2}$

Antwoord 2 correct

Fout

Antwoord 3 optie

$\frac{5}{6}$

Antwoord 3 correct

Fout

Antwoord 4 optie

$(\frac{5}{6},3\frac{2}{3})$

Antwoord 4 correct

Fout

Antwoord 1 optie

$(\frac{1}{2},1)$

Antwoord 1 feedback

Correct:

$\begin{align*} 8x-3=-2x+2 & \Leftrightarrow 10x-3=2\\ & \Leftrightarrow 10x=5\\ & \Leftrightarrow x=\frac{1}{2} \end{align*}$

$y(\frac{1}{2})=1$ . The point of intersection is

$(\frac{1}{2},1)$ .

Go on.

Antwoord 2 feedback

Wrong: A point of intersection consists of an

$x$ and a

$y$ coordinate.

See Point of intersection.

Antwoord 3 feedback

Wrong: A point of intersection consists of an

$x$ and a

$y$ coordinate.

See Point of intersection.

Antwoord 4 feedback

Wrong: Do not forget the minus-signs.

Try again.