Which transformation from the graph of a function f(x) describes the graph of f(x)-1?

Step-by-step explanation:

Any side to side movement of a function will be reflected inside a set of parenthesis with the x.  For example, if the function was a parabola, the parent graph could be, very simply,

Side to side movement would make the equation look like this:

where h is the x coordinate of the vertex.

Up or down movment would make the equation look like this:

for movement upwards, or

for movement downwards.  The k represents the y coordiante of the vertex in this parabola.

Because our function has NO numbers inside the parenthesis with the f(x), but it has a -1 after, we are moving the parent graph of this function, whatever it is, down one from its starting position.

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step-by-step explanation: