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Level 180

Expressions & Equations


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Base
the number that is written with an exponent
exponent
A mathematical notation indicating the number of times a quantity is multiplied by itself
expression
A mathematical phrase without an equal sign.
Equation
A mathematical sentence that contains an equals sign
inequality
A mathematical sentence that shows the relationship between quantities that are not equivalent
term
An element or number in a sequence.
constant
A value in an expression that does not change.
Coefficient
the decimal part
order of operations
The rules for calculating a maths question containing mixed operations, such as 14 - 2 x 4 + 12
distributive property
Multiplying a sum by a number is the same as multiplying each term by the number and then adding (or subtracting ) the products.
Like Terms
expressions that contain the same variables to the same power
Solution
The value or values that make an equation or inequality true.
infinite
Having no boundaries or limits.
constraint
Limitation or restriction
independent variable
the tested varaible
dependent variable
the measure of change in the independent variable
Variable
an alphabetic character representing a number, called the value, which is either arbitrary or not fully specified or unknown. It is usually a letter like x or y.
coordinate plane
A plan formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis.
ordered pair
A pair of numbers that can be used to locate a point on a coordinate plane.
graph
A visual display of data
origin
The centre point of a number line (ground floor of a hotel, freezing point on a thermometer)
point
an exact location in space
x coordinate
In an ordered pair, the value that is always written first.
y coordinate
In an ordered pair, the value that is always written second.
Substitution
The replacement of letters/variables in an algebraic expression.