SOLUTION:
Step 1:
In this question, we are given the following:
Describe the change in the graph of f(×)=x
g(x) =3f (x-1)
Step 2:
Now, we need to sketch the graphs of the two functions:
Step 3:
With the help of the graphs, we can see clearly that:
A number outside the function notation shows a vertical stretch or shrink. Since the number is > 1, it represents a vertical stretch by a factor of 3.
There is also a translation to the right on the x-axis by 1 unit --- OPTION C