If y=12 when x= -15,determine y when x=2

There's no way to tell with the given information.

You've given us one point on a graph . . . (-15, 12) .

There are an infinite number of different lines that can
go through that point.  We don't know anything about
the function (how 'y' depends on 'x'), so we have no way
to know any other point on the graph.

< i think this is the answer unless i did my math wrong