Question

This relation is a function:
{ (5,-2), (6, -2), (7, -2), (8, -2)}
True
False

Answer 1

Answer is TRUE this is a function

Reason = it is a function if it has one unique output for every input, or if your input (x) does not repeat itself to another (y) output.
Also when graphed, the vertical line test will never touch more than (1) line at a time, thus only one input per one output. See attached graph.

Answer 2

True
As long as there isn’t a repeated domain, it is a function