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# Understanding Algebra

Teacher: Mrs. Smith Johnson
Across
Two or more equations working together.
A statement that the values of two mathematical expressions are equal .
A property of real numbers that notes that, for any real number a, b, and c, a(b + c)= ab + ac.
In a right angled triangle the square of the long side is equal to the sum of the squares of the other two sides.
The set of numbers which are permissible replacement values for the independent variable of a function.
An equation or other statement which indicates that two ratios are equal.
Any number that can be written as a quotient of integers.
A letter used to represent a number.
Down
Applying a rule or formula to its results (again and again)
Any member of the set {-4, -3, -2, -1, 0, 1, 2, 3, 4}.
This shows the relative sizes of two or more values.
A relationship of direct proportionality that, when plotted on a graph, traces a straight line.
Any number that cannot be written as a quotient of integers.
Where a straight line crosses the Y axis of a graph.
A quantity whose value does not change.
Numbers, symbols and operators grouped together that show the value of something
The set of all images of the elements of the domain of a function.
A relationship or expression involving one or more variables.