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Melissa's Key Terms

Algebra A Mathematical language that uses symbol,usually letters,along with numbers.The letters stand for numbers that are unknown.
Algebraic expression A combination of variables,numbers, and at least one operation.
Area The number of square units needed to cover the surface enclosed by a geometric figure.
Base In a power,the number used as a factor.
Composite Number A number greater than 1 with more than two factors.
Cubed The product in which a number is a factor three times.
Defining The Variable Choosing a variable to represent the input when writing a function rule.
Equals Sign A symbol of equality,=.
Equation A mathematical sentence that contains an equal sign,=.
Evaluate To find the value of an algebraic expression by replacing variables with numbers.
Exponent In a power,the number of times the base is used as a factor.
Factor A number that divides into a whole number with a remainder of zero.
Formula An equation that shows a relationship among certain quantities.
Function A relation in which each element of the input is paired with exactly one element of the output according to a specified rule.
Function Rule A expression that describes the relationship between each input and output.
Function Table A table organizing the input,rule, and output of a function.
Numerical Expression A combination off numbers and operations.
Order of Operations The rule that tell which operation to preform first when more than one opertation is used
Power A number that can be expressed using an exponent .
Prime Factorization A composite number exressed as a product of prime nuumber
Prime Number A number that is greater than zero
Solution the value of a variable that make an equation true .
Solve to replace a variable with a value that results in a true sentence
Squared a number multiplied by itself
Variables a symbol,usually a letter,used to represent a number.
average the sum of two or more quantities divided by the number of quantities;the mean.
bar graph a graph using bars to compare quantities.
frequency the number of times an item occurs.
graph a visual way to display data.
horizontal axis the axis on which the categories or values are shown in a bar and line graph.
integers the whole numbers and their opposites.
key a sample data point used to explain the stem and leaf plot.
line graph a graph used to show how a set of data changes over a period of time.
line plot a diagram that shows the frequency of data on a number line.
mean the sum of the numbers in a set of data divided by the number of pieces of data.
measures of central tendency numbers that are used to describe the center of a set of data.these measures include the mean,median,and mode.
median the middle number in a set of data when the data are arranged in numerical order.
mode the number(s) or item(s) that appear most often in a set of data.
negative numbers a number that is less than zero.
opposites numbers that are the same distance from zero in opposite direction.
outlier a value that is much higher or much lower than the other values in a set of data.
positive number a number that is greater zero.
range the difference between the greatest number and the least number in a set of data.
stem-and-leaf plot a system used to condense a set of data where the greatest place value of the data forms the stem and the next greatest place value forms the leaves.
vertical axis the axis on which the scale and interval are shown in a bar or line graph.
Created by: Melissa Baby