Question 1150574
<pre>
we let y = the degrees in Celsius and x = the degrees in Fahrenheit. 

The freezing point of water in Celsius is 0°.

The freezing point of water in Fahrenheit is 32°.

So one ordered pair is (x<sub>1</sub>,y<sub>1</sub>) = (32,0).

The boiling point of water in Celsius is 100°.

The boiling point of water in Fahrenheit is 212°.

So another ordered pair is (x<sub>2</sub>,y<sub>2</sub>) = (212,100).

So we find the equation of the line through those two points (ordered pairs).

We use the slope formula:

{{{matrix(1,3,m,""="",(y[2]-y[1])/(x[2]-x[1]))}}}

where (x<sub>1</sub>,y<sub>1</sub>) = (32,0)

and where (x<sub>2</sub>,y<sub>2</sub>) = (212,100)

After you find m (which will be a fraction, which you will reduce), substitute
it into

the point-slope formula:

y - y<sub>1</sub> = m(x - x<sub>1</sub>)

where (x<sub>1</sub>,y<sub>1</sub>) = (32,0)

You finish this.

After you finish you might substitute C for y and F for x.

Edwin</pre>