Download Algerbra 1 Words

Algebra 1 Words
Living Math Dictionary
By:
Ashley Redd
Miranda Hernandez
Jeff Huff
Lauren Diaz
Absolute Value
Distance of a number from zero on a number line.
Example 1:
0 to -6= 6
Example 2:
0 to 27= 27
Accuracy
How close an approximation is to an actual value.
Example 1:
3.56 is about 4
Example 2:
1.001 is about 1
Addition
The process of combining numbers.
Example 1 :
18 + 6 = 24
Example 2 :
6 + 4 = 10
Additive Idenity
A number you can add to any number to make it stay the same.
Example 1:
6+0=6
Example 2:
32+0=32
Additive Inverse
A number and it's oppisite.
Example 1:
-1 & 1
Example 2:
-43 & 43
Algebra
The study of equations using variables.
Example 1:
3x+4x=23
Example 2:
2(5x3)- 4y= 57
Counting Numbers
Counting Numbers Are Whole Numbers But Without The Zero.
Example 1:
1, 2, 3, 4, 5....
Example 2:
6, 7, 8, 9, 10,......
Decimal
A Fractions Whose Denominator Is A Power Of Ten And
Whose Numerator Is Expressed By Figures That Are To The
Right Of The Decimal Point.
Division
The process of ungrouping numbers to sort them.
Example 1:
6÷2=3
Example 2:
10÷1/2=5
Equation
A mathematical sentence built from expressions using one or
more equal signs (=).
Example 1:
5x+2b=4(6)
Example 2:
3a+2b=7
Exponentiation
Faster mutiplication.
Example 1:
x2
Example 2:
23= (2)(2)(2)
Factors
Numbers That Are Multiplied Together Is A Factor.
Example 1:
5(5)= x
Example 2:
42 (2)=x
Fixed
Not changing or moving.
Example 1:
3x+5–3x=
5
The fixed number is 5
Example 2:
-4y-6+4y=
-6
The fixed number is -6
Greatest common factor
The largest number that is a common divisor of a given set of
numbers
Example 1:
72 & 81
GCF= 9
Example 2:
12 & 24
GCF= 12
Integers
Intergers Are Almost Like Whole Numbers Except They Also
Include Negative Numbers.
Example1:
1, 2, 3, 4. 5,...
Example 2:
-1, -2, -3, -4, -5,....
Irrational Numbers
real number that cannot be written as a simple fraction.
Example 1:
33.333
Example 2:
3.1456
Least common multiples
The lowest multiple two factors have in common.
Example 1:
15: 15, 30, 45, 60
20: 20, 40, 60
LCM= 60
Example 2:
3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
10: 10, 20, 30
LCM= 30
Mode
The number that occurs the most often in a list.
Example 1:
5 is the mode of 2,1,3,4,5,5,5
Example 2:
1 is the mode of 1,1,1,2,3,4
Multiplcation
The Process Of Finding The Product Obtained By Repeated
Additions Of A Quantity.
Example 1 :
6(3) = 18
Example 2 :
8(2) = 16
Multipicative Identity
Numbers you can mulitply to make number stay the same.
Example 1:
9(1)=9
Example 2:
51(1)=51
Multiplicative inverse
Number you can multiply to get back to the idenity.
Example 1:
3(1/3)=1
Exmple 2:
15(1/15)=1
Negative
A real number less than zero. Zero itself is neither negative nor
positive.
Example 1:
-6
Example 2:
-0.009
Perfect Squares
Perfect squares are the production of a rational number
multiplyed by itself.
Example 1:
Sqrt (49) =7
Example 2:
Sqrt (64) =8
Positive number
A real number greater than zero.
Example 1:
2
Example 2:
.0008
Rational Numbers
A Rational Number Is Any Number That Can Be Expressed As
The Quotient Or Fraction Of Two Intergers With The
Denominator Not Equal To Zero.
Example 1:
- 3/4
Example 2:
9.5
Subtraction
Process of combining a positive and negitive number.
Example 1 :
10 - 6 = 4
Example 2 :
100 - 30 = 70
Simplify
Rewrite an expression as simply as possible.
Example 1:
2x+3x+5b-2b=
5x+3b
Example 2:
4x+3n+4x+5b+2c=
8x+2n+5b+2c
Variable
A quantity that can change or that may take on different values.
Variable also refers to a letter or symbol representing such a
quantity
Example 1:
x=1
Example 2:
a=3
Whole Numbers
Whole Numbers Are All Numbers.
Example:
1,2,3,4,....
X-intercept
A point at which a graph intersects the x-axis. The x-intercepts
of a function must be real numbers, unlike roots and zero.
Example: