Hi there!
The answer is: increases.
The temperature in degrees Farenheit is indicated on the horizontal axis. The temperature in degrees Celsius is indicated on the vertical axis.
Let's have a closer look at two different points on the graph.
36 degrees Fahrenheit is (more or less) equal to 2 degrees Celsius.
54 degrees Fahrenheit is (more or less) equal to 12 degrees Celsius.
We can conclude: when the temperature in degrees Fahrenheit increases, the temperature in degrees Celsius rises as well.
We can see in the graph that we're dealing with a straight line. This means that the slope (steepness) of the line will always be the same. When the line is increasing one moment, it'll keep increasing.
Hence, the answer is: the graph shows that as Fahrenheit increases, Celsius increases.
~ Hope this helps you!