I am looking for answers to confirm from my midchapter mixed

Solution

Basic algebra can be viewed as an extension of arithmetic. The main concept that distinguishes algebra from arithmetic is that of a variable, which is a letter that represents a quantity whose value is unknown. The letters x and y are often used as variables, although any letter can be used. Variables enable you to present a word problem in terms of unknown quantities by using algebraic expressions, equations, inequalities, and functions. This chapter reviews these algebraic tools and then progresses to several examples of applying them to solve real life word problems. The chapter ends with coordinate geometry and graphs of functions as other important algebraic tools for solving problems.Basic algebra can be viewed as an extension of arithmetic. The main concept that distinguishes algebra from arithmetic is that of a variable, which is a letter that represents a quantity whose value is unknown. The letters x and y are often used as variables, although any letter can be used. Variables enable you to present a word problem in terms of unknown quantities by using algebraic expressions, equations, inequalities, and functions. This chapter reviews these algebraic tools and then progresses to several examples of applying them to solve real life word problems. The chapter ends with coordinate geometry and graphs of functions as other important algebraic tools for solving problems.