Z / -4 < 2....multiply both sides by -4, cancelling out the -4 on the left. And dont forget to change the inequality sign because of multiplying by a negative.
z > 2 * -4
z > -8
Product means to multiply.
Simply
9*12= 108
:-)
If you look at the red blue and purple dots you can see that they form a straight line. if you connected the green dot to the line it would make the line not straight, therefore the relationship is not proportional.
(6, 11) is your answer
Is there a graph for the problem?