Review

Front

What is a term in an algebraic expression that never changes?

Back

Constant: A number without a variable.

Front

In the inequality 3x ≥ 12, do I need to flip my sign?

Back

No

Front

Solve the equation: |2x + 9| = 15

Back

x = 3 or x = -12

Front

What are the x- and y-intercepts for the equation 5x - 3y = 15?

Back

(3, 0) and (0, -5)

Front

Simplify by combining like terms: 4x^2 - 3x + 11 - 2x

Back

4x^2 - 5x + 11

Front

What is a variable in algebra?

Back

A symbol that represents an unknown value, often denoted by letters like x or y.

Front

Define a coefficient in an algebraic expression.

Back

A coefficient is a numerical factor that multiplies a variable.

Front

What does it mean to simplify an expression?

Back

To reduce it to its simplest form by combining like terms or performing operations.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).