Variables
What is a letter or symbol used to represent a number?
A variable
What is the term for adding two numbers?
Answer: Addition
What is a mathematical statement that two expressions are equal?
Answer: An equation.
What is the difference between an expression and an equation?
An expression does not have a = or less than greater than sign
An equations has a = sign or a less than/greater than sign
What is the term for a number without a variable?
A constant.
What is the opposite of subtraction?
Answer: Addition
What do we call the number that is multiplied by a variable?
Answer: Coefficient.
What are grouping symbols in expressions and equations?
( ) parenthesis
[ ] brackets
What do we call an expression that includes at least one variable?
An algebraic expression.
What are terms that are exactly alike or the same except for the numerical coefficients?
Like Terms
What is the difference between a variable and a constant?
A Variable can change (vary),
but a Constant remains the same.
What does 2a + b2 represent?
an Expression
What is representing a variable?
Any letter of the alphabet
What is a symbol indicating what operation must be done?
Answer: Operator
What is the order in which operations should be done?
(hint: acronym)
The Order of operations
Acronym: PEMDAS
P-parentheses;
E-exponents, roots
M-multiplication
D-division
A-addition
S-Subtraction
What does 5x + 2x - 8=16 represent?
An Equation
What is an equation that states two expressions are equal?
An algebraic equation.
What is a number called that multiplies a variable?
A Coefficient
What is the solution set of an inequality?
Answer: The set of values that satisfy the inequality.
What shows the number of times a variable or number is multiplied by itself?
(Hint: It's a small number to the right.)
an Exponent