Although the United States and Great Britain use the Fahrenheit (°F) temperature scale, most countries use the Celsius (°C) scale. The temperature reading 0°C is equivalent to the Fahrenheit reading 32°F. An increase of 1°C is equivalent to an increase of 1.8°F. Let F be the Fahrenheit reading that is equivalent to a Celsius reading of C degrees. Assume that F is the response variable.
a. Why is there an exact linear association?
b. What is the F-intercept of the model? What does it mean in this situation?
c. Find an equation of the model.
d. Graph the model by hand.
e. If the temperature is 30°C, what is the Fahrenheit reading?