What does the transformation f(x)↦3f(x) do to the graph of f(x)? stretches horizontally or vertically ?

Using translation concepts, it is found that the transformation f(x)↦3f(x) stretches vertically the graph of f(x) by 3 units.

In the transformation f(x) -> 3f(x), the function f(x) is multiplied by 3.When a function is multiplied by a constant with absolute value greater than 1, it is stretched vertically.An horizontal stretch is represented by f(x) -> f(ax), which is not the case here.

Hence:

The transformation f(x)↦3f(x) stretches vertically the graph of f(x) by 3 units.

To learn more about translation concepts, you can take a look at link

Idon’t understand sorry

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