How do we find the appropriate place to plot a hole if the y-value is undefined when plugged into the original equation?
First one must need to know how to find a hole in order before I can go any further. You find the hole, which is a point, by plugging in the number you get for a vertical asymptote into the factored equation that has not been cancelled. You will get a value and that value will be the y-value of your hole. Now sometimes the y-value is undefined when a hole is plugged into the original equation. This will not matter because you are supposed to plug in the hole into the simplified/not cancelled equation which will give you a rational/real y-value as your answer.
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