Can Someone Help Me About Functions And Their Graphs.., "Im Really Slow In Terms Of Understanding"

Can someone help me about functions and their graphs..
Im really slow in terms of understanding

 

Answer:

The graph of the function is the set of all points (x,y) in the plane that satisfies the equation y=f(x) y = f ( x ) . ... If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because that x value has more than one output.


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