Question

The point (8,15) is on the graph of y = f(x).

Answer 1

Answer:

Caution.  My best guess.

Step-by-step explanation:

See attached graph.

We don't have an actual equation for y=f(x).  But I can write one that includes (8.15) and then make the changes as requested.  The resulting new lines are shown for each:

A.  y = f(x+5).

B.  y = f(x) + 5.

Coordinates of a point for x=8 may be found on both lines.

For A:     (8,25)

For B:     (8,20)