Nels planned a camping trip during the winter. He kept track of the daily low temperature at the campsite before
and after he arrived. He labeled his arrival date as "Day 0,"
with the days counting down to the trip as negative
numbers. The table displays his data.
Day of trip Low temperature (°F)
-2.
19
-1
7
0
5
1
-13
2
2
-1.