Naledi climbed up a mountain. Her initial altitude was 404040 meters above sea level, and it increased by 101010 meters each hour. Let g(n)g(n)g, left parenthesis, n, right parenthesis be Naledi's altitude at the beginning of the n^\text{th}n
th
n, start superscript, start text, t, h, end text, end superscript hour of her climb.
ggg is a sequence. What kind of sequence is it?