Algebra Unit 1 Flashcard 1.1-1.3

Front

Evaluate 8a - b if a = 10 and b = 6

Back

74

Front

Identify the constant in the expression: 2x + 8 - 3y

Back

8

Front

Evaluate 4n - n² for n = -3

Back

-21

Front

Identify the coefficient in the expression: 29 - 3y

Back

-3

Front

Simplify the expression: -9r³ + 2r - 5r³ + 3 - 20r

Back

-14r³ - 18r + 3

Front

What is a variable in algebra?

Back

A symbol used to represent an unknown value.

Front

What is a constant in algebra?

Back

A fixed value that does not change.

Front

What is a coefficient?

Back

A numerical factor in a term of an algebraic expression.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of the expression for given variable values.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign, while an equation does.