absolute value - Correct Answer: The distance between a real number and zero on a number line. additive inverse - Correct Answer: The opposite of a number. When added together, the sum is zero. algebraic expression - Correct Answer: A collection of numbers and variables with at least one arithmetic operation. associative property - Correct Answer: The grouping of terms within expressions involving addition or multiplication does not change the value. Ex: (a+b) + c = a + (b+c) axis of symmetry - Correct Answer: The line that divides a graph into two symmetrical parts. base - Correct Answer: The repeated factor of a number written in exponential form. binomial - Correct Answer: A two-term polynomial. GMAT Algebra coefficient - Correct Answer: The numerical value of a term. combine like terms - Correct Answer: Adding or subtracting terms that have the same variable(s) and exponent(s). commutative property - Correct Answer: Changing the order of addition or multiplication does not change the value. Ex: a+b+c = c+a+b compound inequality - Correct Answer: Two inequalities combined in one statement by the word and or or. consistent system - Correct Answer: A system of equations with at least one solution. constant - Correct Answer: A term with no variables. coordinate plane - Correct Answer: Formed by two number lines that cross each other at zero. coordinates - Correct Answer: Ordered pairs that identify points on a plane. deductive reasoning - Correct Answer: The process of using logic to draw conclusions. GMAT Algebra denominator - Correct Answer: The lower half of a fraction. dependent system - Correct Answer: A system of equations that has infinite solutions. difference - Correct Answer: The answer to a subtraction problem. difference of two squares - Correct Answer: A binomial whose terms are perfect squares being subtracted. direct variation - Correct Answer: An equation in the form y=kx, where k does not equal zero. discriminant - Correct Answer: The expression inside the radical of the quadratic formula. distributive property - Correct Answer: Used to clear parentheses by multiplying a term on the outside by two or more terms inside the parentheses. Ex: a(b - c) = ab - ac equation - Correct Answer: A mathematical sentence with an equal sign. evaluate - Correct Answer: To find the value of an expression by following the order of operations. GMAT Algebra exponent - Correct Answer: The number of times a base is multiplied by itself. Also called a power. extraneous solution - Correct Answer: A result that does not satisfy the original equation or inequality. factor - Correct Answer: An integer that divides another integer with no remainder. function - Correct Answer: A relation in which every input (x) has exactly one output (y). function notation - Correct Answer: When the output (y) of a relation is renamed f(x). Read "f of x". graphing - Correct Answer: The act of plotting points on a plane to represent a function or relation. greatest common factor - Correct Answer: The largest number that divides into two terms. grouping symbols - Correct Answer: Symbols such as parentheses and brackets, which separate terms within an expressions. Others include fraction bars, absolute value, square root, braces, etc. GMAT Algebra inconsistent system - Correct Answer: A system of equations that has no solution. independent system - Correct Answer: A system of equations that has exactly one solution. inequality - Correct Answer: A sentence using greater than or less than symbols. Also, greater than or equal to, or less than or equal to.