Treat the data as ordered pairs. From the table, write the average distance as x - coordinate and the average temperatures as y - coordinate.
\From the table, the two points are
.
Substitute the values of
in the slope formula
.
.
To write the line equation, we can use either of the two given points.
\Consider the point
.
Substitute
in point-slope form equation or
.

Apply distributive property:
.


Subtract 166 from each side.
\

The line equation is
.