Question

How are the functions y=2x and y=2x-3 related

Answer 1

Both the functions have the same slope which is 2.

Answer 2

Each output for y=2x-3 is three less than the corresponding output for y=2x. The graph of y=2x-3 is the graph of y=2x translated down three units

Explanation:

After you put in on a graph, the answer is pretty self-explanatory.