Well, consider this section a trailer that you see a couple months before the Pre-Calculus For Dummies movie comes out! (We wonder who will play us in the movie.) In the following list, we present some material you’ve learned before in math, and then we give you some examples of where pre-calculus will take you next:Īlgebra I and II: Dealing with real numbers and solving equations and inequalities. These books can be like encyclopedias or the Internet - if you don’t know the material, you look it up and get going from there.ĭon’t you just love movie previews and trailers? Some people show up early to movies just to see what’s coming out in the future. Even the pros have to look up things from time to time. Don’t feel like a failure in math if you need to do that. If we cover any topic in this chapter that you’re not familiar with, don’t remember how to do, or don’t feel comfortable doing, we suggest that you pick up another For Dummies math book and start there. Just to make sure, though, we address each of them in this chapter in a little more detail before we move on to the pre-calculus that is pre-calculus. Have no fear! We’re here to help you cross the bridge (toll free).īecause you’ve probably already taken Algebra I, Algebra II, and geometry, we assume throughout this book that you already know how to do certain things. You keep on building until the end of the course, which doubles as the beginning of calculus. You see some brand-new ideas, but even those build on the material you’ve seen before the main difference is that the problems get much harder (for example, going from systems to nonlinear systems). In its scope, you review concepts you’ve seen before in math, but then you quickly build on them. Pre-calculus is the bridge (or purgatory?) between Algebra II and calculus. Preparing for pre-calculus by grabbing a graphing calculator Refreshing your memory on numbers and variables Lastly, we show you how to deal with exponential and logarithmic functions. We also explain how to graph complex polynomial and rational functions. Then we move on to polynomials and review how to solve polynomials using common techniques, including factoring, completing the square, and the quadratic formula. From there, we review functions - from how to graph them by transforming their parent graphs to how to perform operations on them. The chapters in Part I move through a review of working with real numbers, including the ever-elusive radicals. Perhaps most importantly, it identifies the most common mistakes students make in algebra so you can conquer those before moving on to higher-level concepts. This part pulls together and expands on those algebra concepts. Set It Up, Solve It, Graph ItĪ major goal of pre-calculus is to bring the big ideas of algebra to the surface and sharpen the skills most needed for calculus. Pre-Calculus For Dummies, 2nd Edition (2012) Part I.
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