Answer:
C
Explanation:
The red graph is the graph of y = f(x) shifted up 1 unit vertically.
Given f(x) then f(x) + c represents a vertical translation of f(x)
• If c > 0 then shift up of c units
• If c < 0 then shift down of c units
Here the shift is 1 unit up, thus
y = f(x) + 1 ( subtract 1 from both sides ), that is
Equation of red graph is
y - 1 = f(x) → C