Chapter 2 Vocabulary Flashcards
The numbers……. -3,-2,-1,0,1,2,3…….
Integers
The numbers 0,1,2,3,4,5……
Whole numbers
A number that can be written as a/b where a and b are integers and b is not equal to 0
Rational number
Two numbers that are he same distance from zero on a number line but are on opposite sides of zero
Opposite
The absolute value of a number a is the distance between a and 0 on a number line. The symbol |a| represents the absolute value of a
Absolute value
A statement with a hypothesis and a conclusion
Conditional statement
The number 0 is the additive identity, because he sum of any number and zero is the number a+0=0+a=a
Additive identity
The additive inverse of a number a is its opposite, -a. The sum of a number and it’s additive inverse is 0
Additive inverse
The number 1 is the multiplicative identity, because the product of any number and 1 is the number
Multiplicative identity
Two expressions that have the same value for all values of the variable
Equivalent expressions
A property that can be used to find the product of a number and a Sumer a difference
Distributive property
The parts of an expression that are added together
Term
The number part of a term with a variable
Coefficient
A term with a number part but no variable part
Constant
Terms that have the same variable parts. Constant terms are also like terms.
Like terms
The multiplicative inverse of a nonzero number a is its reciprocal, 1/a. The product of a nonzero number and it multiplicative inverse is 1. Ax1/a=1/axA=1, a does not equal 0
Multiplicative inverse
If b^2=a then b is the b is the square root of a. The radical symbol represents a nonnegative square root.
Square root
The number or expression inside a radical symbol
Radicand
A number that is a square of an integer
Perfect square
A number that cannot be written as the quotient of two integers. The decimal form of an irrational number neither terminates nor repeats
Irrational numbers
The set if all rational and irrational numbers
Real numbers
