新版GRE数学复习重要考点：Coefficient
A constant multiplier of a variable is known as coefficient. They are typically represented by letters a,b,c.
Example:
In the expression 3x+5,3 is the coefficient of x.
In the equation 4x+2y=6,4 is the coefficient of x and 2 is the coefficient of y.
In the inequality 2sin+3z,2 is the coefficient of the function sin.
Remember:
Coefficient cannot change its value.
很多新版GRE数学复习考点都是高中时候学到的知识点，考生不要过于紧张，把基本概念弄明白，再记住一些新版GRE数学必备的词汇，那么相信新版gre数学应该没有问题。
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