при x = −0,5:
$y = \frac{2}{3}х = \frac{2}{3} * (-0,5) = \frac{2}{3} * (-\frac{1}{2}) = -\frac{1}{3}$
 
при y = −2:
$-2 = \frac{2}{3}х$
$x = -2 : \frac{2}{3} = -2 * \frac{3}{2} = -3$
 
при y = 0:
$0 = \frac{2}{3}х$
$x = 0 : \frac{2}{3} = 0$
 
при x = 4,5:
$y = \frac{2}{3}х = \frac{2}{3} * 4,5 = \frac{2}{3} * \frac{45}{10} = \frac{2}{3} * \frac{9}{2} = \frac{1}{1} * \frac{3}{1} = 3$
 
при x = 9:
$y = \frac{2}{3}х = \frac{2}{3} * 9 = \frac{2}{1} * 3 = 6$