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SAT Math Vocabulary
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Terms in this set (50)
Whole Number
Natural numbers ( counting numbers) and zero; 0, 1, 2, 3...
Integer
All whole numbers (both positive and negative) and zero.
Rational Numbers
All positive and negative integers, fractions and decimal numbers.
Irrational Numbers
Any real number which cant be expressed as a fraction of two integers. Non repeating non terminating decimals are irrational
Real Numbers
The set of all rational and irrational numbers
Complex Numbers
All numbers, a combination of a real and an imaginary numbers.
Multiple
The product of a whole number and any other whole number.
Factor
A number that is multiplied by another number to get a product
Prime Number
A whole number that has exactly two factors, 1 and itself.
Odd and Even numbers
All multiples of 2 are even and numbers which are not multiples of 2 are odd numbers
Consecutive integers
Integers in counting order
Absolute value
The distance of a number from zero on a number line
Remainder
The amount left over when one number is divided by another.
Ratio
A comparison of two quantities by division.
Rate
A ratio that compares two quantities measured in different units
Unit rate
A rate in which the second quantity in the comparison is one unit
Percent
A ratio that compares a number to 100
Proportion
An equation stating that two ratios are equal
Term
a constant (number by itself); a variable ( a letter that represents a number); product of a number and a variable; product of two variables; quotient of two numbers or variables
Like Terms
Terms that contain the same variables raised to the same power.
Expression
A collection of terms that are separated by addition and/or subtraction.
Parts of Expression
Coefficient, Variable, Constant, Operator
Exponent
A mathematical notation indicating the number of times a quantity is multiplied by itself. It is also called as index or power.
Radical
A radical (√) symbol used to describe a square root, cube root, a fourth root, or higher roots.
Equation
An expression with an equal (=) sign
Inequality
A statement that compares two quantities using <, >, ≤ or ≥
Linear equation
An equation whose graph is a straight line
Polynomial
Polynomial is the collection of a number of terms. It can have constants, variables and exponents but never division by a variable and/or negative or fractional power.
Quadratic
A polynomial with a degree of 2
Function
A relation in which each element of the domain (input) is paired with exactly one element of the range (output).
Eg: f(x) = 2x - 1
If x (input or domain) = 2 ; f(x) (output or range) = 3
Domain and Range
Domain is all possible input values to a function.
Range is all possible output values to a function.
Mean (or Average)
The sum (+) of all data divided by the number of data points.
Median
Middle score in a distribution; half the scores are above it and half are below it.
Mode
The value that occurs most frequently in a given data set.
Range
The difference between the highest and lowest scores in a distribution.
Chord
A segment whose endpoints lie on a circle.
Diameter
A chord that passes through the center of the circle. Half of diameter is Radius.
Tangent
A line that touches the circle at only one point.
Secant
A line that intersects a circle in two points.
Arc
Part of a circle connecting two points on the circle.
Sector
A region bounded by two radii and an arc lying between the radii.
Perimeter
The sum of the lengths of the sides of a polygon.
Area
The number of square units required to cover a surface.
Volume
Amount of space occupied by an object.
Surface Area
The sum of the areas of all the faces or surfaces that enclose a solid.
Vertex
A point where two or more straight lines meet.
Coordinate plane
A coordinate system formed by the intersection of a horizontal number line, called the x-axis, and a vertical number line, called the y-axis.
Slope
The steepness of a line on a graph. Slope is Rise over Run.
x-intercept
The x-coordinate of the point where the line crosses the x-axis
y-intercept
The y-coordinate of the point where the line crosses the y-axis
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