- #1

- 15

- 0

f(5,2) = 80

f

_{x}(5,2) = 8

f

_{y}(5,2) = -6

**Suppose 80 is measured in degrees Fahrenheit. Find the direction where the temperature would get cooler.**

I just did 8a - 6b = 0 (since using the dot product, <8,-6> * <a,b> = 0.

Then I solved for a, b, and this was the vector equation.

Then the question asked,

**How many steps would you take to get from 80 to 78 degrees?**

I have no idea. Is it asking for the magnitude?