6. How do we find the appropriate place to plot a hole if the y-value is undefined when plugged into the original equation?
First, we have to factor the top and bottom of the rational function. If there are any common factors, then we cross them out. These common factors that we crossed out are our holes. To get the appropriate place, we would put zero as y because if it is undefined, then our denominator is zero and anything divided by zero is zero. We would plot the hole on the origin.
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