A limit is the value of a function as it approaches the the value you plugged in or is your asymptote. We can tell if limits exist if both number on the left and the right of the asymptote equal the same limit. If the limits are not equal, the left side will be negative infinite, and the right side positive infinite.
Factors and zeros are very easy relatable. For example, if your zeros -2 and 3, your factors are (x+2)(x-3). The factors are generally the inverse of the zeros. You can factor out the zeros with division. It helps you get the number of factors. Generally yes. When you plug it into desmos it shows you.
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April 2015
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