Carolyn then calls her friend Chilly from the Super Cool Republic, where they use a different system of units. On their scale, t
he freezing point of water is 170, and the boiling point of water is 620. What should she say when Chilly asks her about the temperature in Rome? t(SC) = _______________ ?
In this case, the two friends use different systems to measure the temperature, so we must create a transformation relationship of the temperature in the new system.
The temperature difference between the two states is
number of divisions on the new scale (620-170) = 450
the number of divisions in centigrade is (100-0) = 0
the relationship between these two divisions is
m = 450/100
m = 4.50
the cut-off point in centigrade is zero and on the new scale it is 170
whereby
b=170
therefore the transformation equation (equation of the line)
