Identify numbers in given last of numbers 1,3,1,9,1,27

Which table represents a linear function? i'll give brainliest to first answer ^'^

Atemperature of 1.64◦f corresponds to answer in units of ◦c.

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.