Is this a functional relationship?how do you know?​

The graph of g(x) is a translation of y = which equation represents g(x)?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Tobias gold sells computers at the office center he's guaranteed a minimum salary of $1,959 per month plus 6.3% commission on total sales how much in total sales is he