Zeros of a Function #6

For the Rational Zero Test, we first find all the possible zeros using P/S then test the zeros using the remainder theorem. A hint would be to graph to see all the possible points. The Rational Zero Tsst gives you the possibility of all the rational zeros. Once you find one, you can do synthetic division. Just like last week, we might have to use synthetic division multiple times. Since the work it really tedious, the Rational Zero Test is the best method to use. Remember both positive and negative parts of zeros!

Functions #3

Today, I learned that a function was an equation that you could put a in number called an input to end up with a solution which is the output. An example of a basic function equation would be f(x)=2x^2+1. A subsection of a function would be its domain. A domain is what you ask yourself, "what can I put in?" There are two ways to solve domains. First, if the problem has a square root you must set it to > or equal to 0, because a negative cannot be in a square root. Second, if there is denominator in the problem, set each denominator to zero, but keep in mind, the answer cannot be zero. If the answer is zero, the solution is undefined.