Direct and Inverse Proportion (UK)

A is directly proportional to B

• $A\propto B$ 

• $A\propto B^2$

• $A\propto\sqrt{B}$

• $A\propto B^3$

A is directly proportional to the square of B

• $A\propto B$ 

• $A\propto B^2$

• $A\propto\sqrt{B}$

• $A\propto B^3$

A is directly proportional to the square root of B

• $A\propto B$ 

• $A\propto B^2$

• $A\propto\sqrt{B}$

• $A\propto B^3$

A is directly proportional to the cube of B

• $A\propto B$ 

• $A\propto B^2$

• $A\propto\sqrt{B}$

• $A\propto B^3$

A is inversely proportional to B

• $A\propto\frac{1}{B}$

• $A\propto\frac{1}{B^2}$

• $A\propto\frac{1}{\sqrt{B}}$

• $A\propto\frac{1}{B^3}$

A is inversely proportional to the square of B

• $A\propto\frac{1}{B}$

• $A\propto\frac{1}{B^2}$

• $A\propto\frac{1}{\sqrt{B}}$

• $A\propto\frac{1}{B^3}$

A is inversely proportional to the square root of B

• $A\propto\frac{1}{B}$

• $A\propto\frac{1}{B^2}$

• $A\propto\frac{1}{\sqrt{B}}$

• $A\propto\frac{1}{B^3}$

A is inversely proportional to the cube of B

• $A\propto\frac{1}{B}$

• $A\propto\frac{1}{B^2}$

• $A\propto\frac{1}{\sqrt{B}}$

• $A\propto\frac{1}{B^3}$

Number of hours worked and weekly wage.

• Directly Proportional

• Inversely Proportional

• Neither

Distance a rock is dropped and time taken to fall.

• Directly Proportional

• Inversely Proportional

• Neither