# physics

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

A_Directly proportional
B_Inversely proportional
C_Completely unrelated
D_Blue and red

• physics -

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.

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