Direct and Inverse Proportion Study Guide

What type of proportion does the table represent?

• Direct

• Inverse

• I dont' know

The amount of money earned on a job and the number of hours worked. 

• Directly Proportional

• Inversely Proportional

• Directly Proportional

• Inversely Proportional

1.The number of pencils sold varies directly as the cost. If 5 pencils cost $0.45, find the cost of 7 pencils.

• Direct Variation

• Inverse Variation

The number of centimetres in a linear measurement and the number of inches in the measurement.

• Directly Proportional

• Inversely Proportional

The accelereation of a particle and the time taken to travel a short interval are

• Directly Proportional

• Inversely Proportional

The length of time you charge your mobile phone and the battery power 

• Directly Proportional

• Inversely Proportional

The outside temperature and the number of layers of clothes you need to wear outside to feel comfortable 

• Directly Proportional

• Inversely Proportional

The number of hours to paint a house varies and the number of painters working.

• Directly Proportional

• Inversely Proportional

The area of a rectangle and its width.

• Directly Proportional

• Inversely Proportional