Answer
Linear function.
Work Step by Step
We see that g is in the form $y=mx+b$, so it is a linear function. Note, in the case of $g$, we see that the value of $m$ is 1, and the value of $b$ is -1.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.