PPT-Variable Expressions

2009 SOL A1 Varina High School Tammy Wallace Vocabulary A variable is a symbol usually a letter used to represent a quantity This quantity represents an element of any subset of the real numbers. Class VIII . Topic . Algebraic Expressions and Identities. Sub Topic. Identities. TIME DURATION-45 MINUTES. . Prepared & Presented. By. Mr.. . nagesh.M.S. K.V.Hassan. ,. Karnataka. 1. Objectives:-. Stotts. Computer Science Department. UNC Chapel . Hill. Introduction to Programming. (in JavaScript). 0. . data . (. types, simple information. ). 1. . data storage . (. variables, assignment. ). 2. . Lecture 13. Announcements. HW5 up on course webpage. Due on . Tuesday. , 10/21 in class.. Upcoming: Exam on October 28. Will cover material from Chapter 4. Details to follow soon.. Agenda. Last time. CS1313 Spring 2016. 1. Arithmetic Expressions Lesson #2 Outline. Arithmetic Expressions Lesson #2 Outline. Named Constant & Variable Operands #1. Named Constant & Variable Operands #2. Named Constant & Variable Operands #2. Lecture 18. Recursive Definitions: Regular Expressions,. Context-Free Grammars and Languages. Spring 2013. 1. Announcements. Reading assignments. 7. th. Edition, pp. 878-880 and pp. 851-855. 6. th. By: Karen Overman. Objective. This presentation is designed to give a brief review of simplifying algebraic expressions and evaluating algebraic expressions.. Algebraic Expressions. An . algebraic expression. 1. Warm Up. OBJECTIVE:. . We will identify independent & dependent variables and use them to write algebraic. expressions for real-world scenarios.. LANGAUGE OBJECTIVE: . We will express verbally and in writing key vocabulary pertaining to variable . Definition. “An operator is a symbol (+,-,*,/) that directs the computer to perform certain mathematical or logical manipulations and is usually used to manipulate data and variables”. Ex: a+b. Operators in C. Variable: a placeholder for any value. Algebraic Expression: contains sums and/or products of variables and numbers. Substitution Property of Equality: replacing a variable with a number . Defining a Variable: Choosing a variable that will represent a certain quantity. Using the properties to make expressions easier to work with.. What is an expression?. Numerical Expression. Variable/Algebraic Expression. Vocabulary. Look at the diagram of an expression. In your own words, write a description/definition for each vocabulary word given.. Data and expressions. Data types. Internally. , computers store everything as 1s and 0s. . 104. .  . 01101000. . 'hi'. .  . 0110100001101001. . 'h' .  . 01101000. How are . h. and . Vocabulary:. Term- a number or the product of a number and variables. Constant- a term that has no variables. Like terms- have identical variable (has the same variable with the same exponent). Coefficient- a number that multiplies a variable. Can watching facial expression tell if someone is lying or not?. purpose. The purpose of my investigation is to determine if someone is lying by their facial expressions. This is important to know because if someone is lying you can tell that they are.. Essential Question: How can you simplify an algebraic expression?. 7. X + . 10 . . Coefficient. Variable. Constant. Like terms: Rules:. Same Variable . AND. same exponent. Coefficients can be different (# attached to variable).