The function which represents the graph is : D. y = 3sin(x)
What is function?
"A function is an expression which assigns each element of X to exactly one element of Y from a set X to a set Y."
What is the graph of function?
"The graph of a function f is the set of all points in the plane of the form (x, f(x))."
What is the graph of sine function?
"The graph of y=sin(x) is like a wave that oscillates between -1 and 1, in a shape that repeats itself every 2π units.
Also, the graph of sine function passes though origin, as sin(0) = 0 ."
What is the graph of cosine function?
"The graph of y=cos(x) is like the graph of y=sin(x) but shifted horizontally by π units"
From given graph, we can observe that the graph must be of sine function.
Also, given graph represents the graph of y = sin(x) expanded 3 times.
So, the function which represents the graph is, y = 3sin(x).
Hence, the correct answer is option D. y = 3sin(x)
Learn more about graph of function here,
https://brainly.com/question/9304982
#SPJ2
