00:01
We are told that if a object has a temperature of 20 degrees celsius, and it's also 68 fahrenheit, and if it's 110 celsius, it's 230 degrees fahrenheit.
00:13
We're also told this is a linear relationship, so we do have a line between the two points.
00:20
First part asks us to write an equation for the temperature in fahrenheit in terms of the celsius temperature.
00:29
So we have these two points on the line.
00:34
The slope of that line is rise over run.
00:37
The rise is the change in the y, 230 minus 68, over the run of 110 minus 20.
00:47
That would give us 162 over 90.
00:54
That will reduce.
00:58
Two goes into the top and the bottom.
01:04
3 goes into both 81 and 15 or 45.
01:11
3 goes in again.
01:14
So we do get it all the way down to 9 over 5.
01:19
So using the form of y equals mx plus b, where f is our y value and c is our x...