What is a variable? Answer: A variable is a symbol, usually a letter, used to represent an unknown or unspecified quantity in an algebraic equation.

What is a coefficient? Answer: A coefficient is a numerical factor that is associated with a variable in an equation or expression.

What is the definition of a linear equation? Answer: A linear equation is an equation that produces a straight line when plotted on a graph.

What is an inequality? Answer: An inequality is an equation with a less than (>), greater than (<), or not equal to(≠) sign.

What is the difference between a term and a factor? Answer: A term is a single number, variable, or the product of several numbers, variables and constants. A factor is a number or expression which divides into another number or expression without leaving a remainder.

What is the difference between a polynomial and a monomial? Answer: A polynomial is an expression containing one or more terms. A monomial is a single term consisting of a coefficient and a variable (or several variables) raised to a power.

What is a quadratic equation? Answer: A quadratic equation is a polynomial equation of degree 2, in the form ax^2 + bx + c = 0, where a ≠ 0.

What is the distributive property? Answer: The distributive property states that, when two or more factors are multiplied together, the product is equal to the sum of all individual products.

What is the FOIL Method? Answer: The FOIL method is a method for multiplying two binomials, in which the terms are multiplied individually and combined. The FOIL acronym stands for First, Outer, Inner, and Last.

What is the definition of a irrational number? Answer: An irrational number is a real number that cannot be expressed as a fraction p/q for any integers p and q. Examples include √2 and π.