Temperature conversion

[rpdrake]

The two common temperature scales in use are Fahrenheit (US) and Celsius (everywhere else). The two scales agree that 40F and -40C represent the same temperature. At the melting point of water, the temperature is 32F or 0C. Let x represent the temperature in F and y represent the temperature in C. Write the equation that relates the two temperature scales.

 

[Mrspi]

The two common temperature scales in use are Fahrenheit (US) and Celsius (everywhere else). The two scales agree that 40F and -40C represent the same temperature. At the melting point of water, the temperature is 32F or 0C. Let x represent the temperature in F and y represent the temperature in C. Write the equation that relates the two temperature scales.

The information in the problem tells you that -40 degrees F (I think you have a typo in your problem!!) and -40 degrees C are equal.

And, you are also told that 32 degrees F is the same thing as 0 degrees C.

You have two points in the form (F, C):

(-40, -40) and (32, 0)

Given two points on a line, you should be able to find the equation of the line which contains the two points.

y = mx + b
C = mF + b

Find the slope, m. Use one of the given points to find b. Then, write the equation.

If you still have trouble, please repost, showing everything you have done to try to solve the problem.

I hope this helps you.