00:02
This question, part a, they want us to predict the value of the temperature for the average temperature of the cities for 40 degrees north.
00:13
So i'm just going to set up the question here.
00:15
Let's predict for 40 degrees.
00:18
So this is a simple substitution question into the equation that they gave us, y equals negative 2 .333 times x, which is now 40, in this question, plus 124.
00:31
So you can turn to your calculator multiply 40 with the negative 2 .333, add 124.
00:41
Round to the nearest 10th place, we get 30 .7 degrees fahrenheit.
01:10
Scrolling down here for part b.
01:14
They want us to do the same thing, but predict for a new latitude of 47 .4 degrees.
01:24
So we're going to do the same thing in substitute y equals negative.
01:27
2 .333 times 47 .4 plus 124.
01:39
Multiply, then add in your calculator you end up with y equals 13 .4 when rounded to the first decimal place degrees fahrenheit...