Beginning at the Very Beginning:
In This Chapter
Brushing up on order of operations
Graphing equalities and inequalities
Finding distance, midpoint, and slope
re-calculus is the stepping stone for Calculus. It’s the final hurdle after all those years of
math: Pre-algebra, Algebra, Geometry, and Algebra II. Now all you need is Pre-calculus
to get to that ultimate goal — Calculus. And as you may recall from your Algebra II class, you
were subjected to much of the same material you saw in Algebra and even Pre-algebra (just
a couple steps up in terms of complexity — but really the same stuff). As the stepping stone,
pre-calculus begins with certain concepts that you’re expected to solidly understand.
Therefore, we’re starting here, at the very beginning, reviewing those concepts. If you feel
you’re already an expert at everything algebra, feel free to skip past this chapter and get the
full swing of pre-calc going. If, however, you need to review, then read on.
If you don’t remember some of the concepts we discuss in this chapter, or even in this book,
you can pick up another
math book for review. The fundamentals are impor-
tant. That’s why they’re called fundamentals. Take the time now to review — it will save you
countless hours of frustration in the future!
Reviewing Order of Operations:
The Fun in Fundamentals
You can’t put on your sock after you put on your shoe, can you? The same concept applies
to mathematical operations. There’s a specific order to which operation you perform first,
second, third, and so on. At this point, it should be second nature. However, because the
concept is so important as we continue into more complex calculations, we review it here.