Vw=-18 is it a direct joint or inverse variation and what is the constant variation

Inverse variation

Constant = - 18

Step-by-step explanation:

Inverse or Indirect Variation where when one of the variables increases, the other one decreases (their product is constant). For example, y=k/x or xy = k; the value of y varies inversely with x, y is inversely proportional to x, y is indirectly proportional to x