D. g(x) = f(x) +9 is the right answer
Step-by-step explanation:
The shifting of graphs is mathematically denoted by adding or subtracting a number from the output or input.
When the graph is shifted up, a number is added to the functions's output
For example
For a function
f(x)
Shifting up is represented as g(x) = f(x)+b where b is a number
So,
Given function is:
f(x) = x
Shifting the graph 9 units upwards we will get
g(x) = f(x) + 9
Hence,
D. g(x) = f(x) +9 is the right answer
Keywords: Functions, Graphs
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