## Calculus 8th Edition

(a)$13.8$ (b) $\approx1990$ (c) $\approx1910$ , $\approx2010$ (d) $[13.5, 14.45]$
(a) The global average temperature in 1950 is $T(1950) = 13.8$ (b) The year when the average temperature was 14.2°C is $\approx1990$ (c) the smallest temperature was in $\approx1910$ the largest temperature was in $\approx2010$ (d) the range of T is $[13.5, 14.45]$