The answer would be -18°F at 6AM
Hope this helps ?(:
First Find slope by using


Now use point Slope form to find the equation of the line (y-y₁)=m(x-x₁)
(y-6)=

(x-2)
y-6=

y=

is your equation
Example:
38 rounds to 40
6 rounds to 10
10+40 = 50
Well for 1.4 will be 1, 2.2 will be 2, 0.7 will be 1, 3.9 will be 4, and 1.8 is 2