Direct and Inverse Relationships handout PDF

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Direct and Inverse Relationships Direct Relationship: This is where two variables do the same thing. If one increases, the other increases. If one decreases, the other decreases. Inverse Relationship: This is where two variables do the opposite thing. If one increases, the other decreases.

A direct relationship looks like

An inverse relationship looks like

Direct Relationships are written as A = kB where k is a nonzero constant. 𝒌

Inverse Relationships are written as A =

𝑩

where k is a nonzero constant.

Direct Relationship Examples: Radius of a circle and its area are directly related. If the radius increases, the area will get bigger. If the radius decreases, the area will be smaller. Pay and the number of hours worked are a direct relationship. If the hours worked increase, pay will increase. If the hours worked decrease, pay will decrease. Inverse Relationship Examples: Speed and the time it takes to travel are inversely related. As you increase your speed, the travel time decreases. As you decrease your speed, the travel time increases. The Law of Supply and Demand is an inverse relationship. As the demand of a product increases, its supply will decrease. As the supply of a product increases, the amount of demand will decrease....