5. If a quantity increases as a second quantity decreases and decreases as the second quantity increases, the two quantities are said to be:

Question

A_Directly proportional
B_Inversely proportional
C_Completely unrelated
D_Blue and red

Answer 1

C. is the best answer. Strictly speaking, "inversely proportional" for variables x and y, means x*y = constant. There could be other relationships where one goes up while the other goes down.