May 28th, 2015
Studypool Tutor
Price: \$0 USD

Tutor description

Word Count: 10599
Showing Page: 1/22
See if you can notice the difference between most of the math problems weve considered so far, and these:Eek! There are letters in there! As you no doubt know, the letters are called variables, and they make possible the wonderful world of algebra. Whoever thought of adding variables into math certainly made tens of millions of school kids lives harder, because without algebra, there would be no geometry, no trigonometry, no calculus, and possibly no misery at all in the world. Thanks a lot, Mr. or Mrs. Math Genius . . . Of course, there would probably be no microwave ovens or iPods either, so its not all bad.Since the variables represent unspecified quantities, algebra brings arithmetic into the world of the unknown. Of course, much of algebra deals with making that unknown known; that is, solving equations so that variables can be replaced by good old-fashioned numbers. Well get to all that soon enough, but first a little vocabulary is in order.Algebra TermsThere are six main terms that describe the world of algebra. The GRE wont ask you to define them but will nonetheless give you questions that require you to work with them.1. Constant. A numerical quantity that does not change. 2. Variable. An unknown quantity written as a letter. A variable can be represented by any letter in the English alphabet; x or y are common on the GRE, but youll see others as well. Variables may be associated with specific things, like x number of apples or y dollar

## Review from student

Studypool Student
" Only issue was the guy's response time which was a bit long, which made me a bit anxious. Reached out to the help desk and they helped me out, turns out the tutors aren't all from US which meant there was a time difference. No issues on the quality. "

1822 tutors are online

### Other Documents

05/28/2015
05/28/2015
05/28/2015

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors