Answer:
A temperature in degree Celcius is not equivalent temperature in degrees Fahrenheit. So, NOT proportional.
This is the formula:
[tex]F=\frac{9}{5} C+32[/tex]
F increases as C increases and F decreases as C decreases, but the relation is not direct proportionality.
If the formula had been
[tex]F=\frac{9}{5} C[/tex]
it would have been a direct proportion.
However, the addition of the +32 makes the formula no longer a direct proportion.
Hope you understand a bit more now!
