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SAT Math Vocab

Best damn SAT Learning anywhere

TermDefinition
Sum The answer to an addition problem.
Quotient The answer to a division problem.
Difference The answer to a subtraction problem.
Product The answer to a multiplication problem.
Variable An unknown represented by a letter (X, N)
Coeffecient The number that is next to the variable (4X; it's the 4)
Odd number Ends in 1,3,5,7,9
Even number ends in 2,4,6,8,0
Prime number Only divisible by 1 and itself (7, 23, 37)
Integer A number without a decimal (3, -27, 11, 13)
Twice a number 2P
4 less than a number P-4
Composite number A number divided by MORE than just 1 and itself
Numerator Top number of a fraction
Denominator Bottom number a fraction
Reciprocal A fraction that flipped upside down (3/7.......7/3) (1/4.......4)
Consecutive integer sequential number 7,8
Odd consecutive integers sequential odds (5,7,9,11)
Even consecutive integers sequential even (6,8,10,12)
Ordered Pair (X,Y) grouped together (5, -8)
Factor A number that multiplies into a number (20....2,10, 1,20, 4,5)
Multiple A number that when you multiply the original number it will go into (7....7, 14, 21, 28)
Pi 3.14
Area of a circle formula pi x r (squared)
Circumference of a circle formula 2 x pi x r
Area of a rectangle length x width
Area of a squre side (squared)
Area of a triangle 1/2 base x height
Pythagorean Theorem a^2 + b^2 = c^2
Mean The average of a group of numbers
Median The middle of a group of numbers (3,4, 5, 5, 5, 7, 8) Median =5
Equation of the line formula Y=mx+b
Slope of the line m
y-intercept b
Positive slope goes slanting up
Negative slope goes slanting down (right)
0 slope Horizontal line
Undefined slope Vertical line
Two point slope formula (Y2-Y1/X2-X1)
Plot slope rise over run
Ratio A comparison of two numbers; notations include the use of fractions or colons
Created by: erichholzshu
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