How do we know if a graph represents either direct or inverse proportionality? We look for certain features of the graph and perform some test calculations to help us decide. Look at this graph ...

Different types of graph have different uses. A line graph shows how data changes over time. For example, how the volume of traffic changes over a day so you can see the busiest times. A bar chart ...

Inverse modelling and imaging are essential for visualizing objects and extracting hidden information from limited and indirect measurements, that might be noisy. For example, medical X-ray tomography ...

The downward slope is created by the inverse relationship between ... ÷ 2 dresses sold = $75 For another example, consider the graph below. It shows the theoretical marginal and average return ...