Chapter 9
Algebra: Finding What X Really Means
IN THIS CHAPTER
Working with bases and exponents
Dealing with variables to solve algebraic expressions
Digging deep into roots and radicals
Plotting points, lines, and slopes with coordinate geometry
Manipulating functions and sequences
Algebra is a branch of mathematics that uses numbers, letters, and operations to represent the concepts and rules of mathematics. Through an understanding of these concepts and rules, you’re often able to use what you know (the information a question provides) to determine what you don’t know, such as the value of x. You’ve probably already solved lots of algebra questions in junior high and high school and perhaps even in your college courses. You just need a refresher to get your head back in the game.
This chapter reveals everything you need to know about algebra to be fully prepared for the test. It starts slowly with bases, exponents, and variables such as x and y and gradually moves on to complicated ...
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