Summary
Summary - Consumer math
- Course
- Consumer math
- Institution
- 9th Grade
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Algebraic Expressions:An algebraic expression consists of variables, constants, and operations like
addition, subtraction, multiplication, and division.
Examples of algebraic expressions: 2x + 3y, 4a - 2b, 5x² - 2xy + 3y².
Simplifying Expressions:
Combine like terms by adding or subtracting coefficients.
Use the distributive property to simplify expressions involving parentheses.
Evaluating Expressions:
To evaluate an expression, substitute the given values for variables and perform
the operations.
Example: Evaluate 3x + 2y for x = 4 and y = 5.
Substitute x = 4 and y = 5: 3(4) + 2(5)
Simplify: 12 + 10 = 22
Translating Phrases into Expressions:
Learn how to convert verbal phrases into algebraic expressions.
Example: The sum of twice a number and five.
Algebraic expression: 2x + 5, where x represents the number.
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