Graph A is defined by equation y = -x-23. See attached the graph function for the other equations.
What is a graph function?
A function's graph is the set of all points in the plane of the form (x, f(x)). The graph of f might similarly be defined as the graph of the equation y = f. (x).
As a result, the graph of a function is a subset of the graph of an equation.
See the attached images for the graph of all the stated functions.
Learn more about Graph Function:
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