Math Translating Algebraic Expressions By: Darala Hartwell
Remember: 1. A variable is a letter used to represent an unknown value. 2. A numerical expression includes numbers and operations. 3. An algebraic expression contains variables, numbers and operations.
a b x y What am I? What do I represent? How did I get here? How did I get here? I am so unknown Variables are letters that represent unknown values.
Numerical Expressions Numerical expressions include numbers and operation symbols.
Algebraic Expressions An algebraic expression includes : Numbers Operationsand Variables
Lets look at examples of a numerical expressions: (4)
Lets look at examples of algebraic expressions. x - 4 2(5+n) b 2
Equations Algebraic expressions like phrases in English are incomplete. An equation, like a sentence, is complete. You will notice the inclusion of a very special symbol. An equation is made up of numbers, variables, and an equal sign. 3b + 5 = 26
Rewrite these verbal expressions as algebraic expressions. 5. Four less than a number increased by twice a number 3. n to the seventh power 2. the product of 15 and some number 1. the sum of s and 12 s+12 15n 56+2a n-4 n7n7
Lets write equations for these sentences. 1. Forty-three less than n is equal to 35. n – 43 = Seven more than y is 13. y + 7 = 13