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Direct Proportion means that as one increases, the other also increases.
Inverse proportion is the reciprocal of direct proportion. If something is in the direct proportion of 1:3, then the inversion proportion is 3:1.
Or
Indirect Proportion means that as one increases the other decreases, or one is directly proportional to 1 divided by the other. Example: Pressure is indirectly proportional to volume, or Pressure is directly proportional to 1/Volume.
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Is this an example of direct or inverse proportion?
direct
Is expenditure and number of family members direct or inverse proportion?
Neither. Many items of expenditure would be shared (eg housing, utilities, transport, holidays) so the proportion would not be direct. But it would be closer to direct than inverse.
Is distance traveled versus time at a constant speed a direct or inverse porportion?
Think about it. If you travel for more time, would you advance a greater distance (that would be a direct proportion), or less distance (that would be an inverse proportion)?
What is definition of inverse and direct proportion?
Direct proportion means as the independent variable increases, the dependent variable increases, and vice versa. Inverse propostion means just the opposite. As the independent variable increses, the dependent variable decreases, and vice versa.
Can you find the constant of proportionality when given a certain situation?
If the variables are in direct or inverse proportion then yes; otherwise no.
