Chapter 3 was all about functions. This involved rational functions, complex numbers, and factoring. We used many methods to solve and factor, like the foiling method, quadratic formula. Also, we found zeroes, which are the solutions of a function. An example of a quadratic function is f(x) = 4x^2 + 2x - 6.
The zeroes of this function can be found using the quadratic formula, or [-b +/- sqr(b^2 - 4ac)]/2a. When you plug in the values for the function, you get two solutions because of the +/- sign. This is where 4 = a, 2 = b, and -6 = c. Overall this was a very interesting chapter, although it is review.
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