Answer:
$8
Step-by-step explanation:
In mathematics, two varying quantities are said to be in a relation of proportionality, if they are multiplicatively connected to a constant; that is, when either their ratio or their product yields a constant. The value of this constant is called the coefficient of proportionality or proportionality constant.
The answer would be 48.
All you would have to do is multiply the height (the straight line) and the length which is the 6.