Algebra 1 Semester 2 Review

Front

What is the definition of a variable in algebra?

Back

A variable is a symbol, often a letter, that represents one or more numbers.

Front

What is the purpose of solving an equation?

Back

The purpose of solving an equation is to find the value(s) of the variable that make the equation true.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Front

How do you solve a linear equation in one variable?

Back

To solve a linear equation, isolate the variable on one side of the equation using inverse operations.

Front

What is a function in algebra?

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the quadratic formula?

Back

The quadratic formula is x = (-b ± √(b² - 4ac)) / (2a), used to find the roots of a quadratic equation.

Front

What are the x-intercepts of a graph?

Back

The x-intercepts are the points where the graph crosses the x-axis, found by setting y = 0.

Front

What is the difference between a rational and an irrational number?

Back

A rational number can be expressed as a fraction of two integers, while an irrational number cannot.