While speaking on the phone to a friend in Oslo, Norway, you learned that the current temperature there was −23° Celsius (−23° C). After the phone conversation, you wanted to convert this temperature to Fahrenheit degrees °F, but you could not find a reference with the correct formulas. You then remembered that the relationship between °F and °C is linear. (a) Using this and the knowledge that 32° F = 0°C and 212°F = 100°C, find an equation that computes Celsius temperature in terms of Fahrenheit temperature; i. e., an equation of the form C = “an expression involving only the variable F.”

(b) What does the slope mean in the linear model from part (a)?

(c)Likewise, find an equation that computes Fahrenheit temperature in terms of Celsius temperature; i. e. an equation of the form F = “an expression involving only the variable C.”

(d) What does the slope mean in the linear model from part (c)?

(e) How cold was it in Oslo in °F?

(f) What temperature is it the same in °F and °C?