Unit One exam #1. Variable Expression An expression that consists of numbers, variables, and an operation. 2x+3.

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1 Unit One exam #1

2 Variable Expression

3 An expression that consists of numbers, variables, and an operation. 2x+3

4 Base of a Power

5 base The number or expression that is used as a factor in a repeated multiplication. So the 5 is the base.

6 term

7 The part of an expression that are added together. 2x+6 So the terms in the above expressions are (2x) and (6).

8 Expanded Form

9

10 appropriate

11 The correct or proper use for something.

12 Operation

13 In math operation refers to the action in a math sentence or problem. So 2x++ In the variable expression 2x+4 the operation is to add.

14 Like Terms

15 In an variable expression 2x+3x+4x-2n, we see a common variable x, so (2x+3x+4x) are like terms.

16 Commutative Property

17 a+b+c=c+b+a 1+2+3=2+3+1 axbxc=cxbxa 1x2x3=2x3x1

18 Associative Property

19 Grouping does not matter

20 Distributive Property

21 a(b+c) = axb+axc 2(3+4) = 2x3+2x4

22 Identity property of Addition

23 What number plus a number is the same number? Or what plus eight is eight? 8+0=8 -15+0=-15 2/3+0=2/3 5.76+0=5.76 C+0=c

24 Identity property of Multiplication

25 Identity Property of Multiplication What number TIMES a number is the same number? Or what TIMES eight is eight? 8x1=8 -15x1=-15 2/3x1=2/3 cx1= c

26 Inverse Property of Multiplication Multiplicative Inverse

27 Inverse Property of Multiplication Inverse,

28 Inverse Property of addition

29 If you start with eight and add the invers the opposite you get zero. 8+-8=0 1/2 + -1/2 = 0

30 Coefficient

31 4x+3 The 4 is the coefficient

32 Constant

33 2x+3 The 3 is the constant

34 Variable

35 2x+3 The x is the variable

36 Like Terms

37 4x and 3x Both terms have an x so they are like terms.

38 Addition

39 Sumar To add Plus The sum of Increased by Total More than Added to Sum Altogether More than Increased

40 Subtraction

41 Menos Minus The difference of Decreased by Fewer than Less than Subtracted from Difference Less-than Take away Decreased compare

42 Multiplication

43 Multiplicar Times the product of Multiplied by Of Product a(b) Times Groups of

44 Division

45 Dividid Divided by The quotient of Into Equally Equal groups Quotient 3/a

46 Power

47 A power is a way of writing repeated multiplication.

48 Base

49 Power The base of a power is the factor, and the exponent of a power is the number of times the factor is used.

50 Unit Rate

51 Rate is a ratio of two quantities measured in different units. You are looking for the cost of one. So if you buy 6 sodas for $7.50, you will see that the cost is $1.25. To find the answer you divide 7.50 by 6.

52 Ratio

53 A ratio is a comparison of two numbers using division. a b 1:2 1to2 comparacion entre dos numeros usando la division. La razon de la “A” a “B” (donde “B# 0) puede escribirse como”A” a “B”, c omo A:B

54 Proportion

55 A proportion is an equation stating that two ratios are equivalent. 1 = 4 2 8

56 Simple Interest

57 I=prt I = interest P= principal amount (how much you borrow) r= rate (percent) t= time ( in years)

58 Q-3 Test #1

59 Histogram

60 A graph that displays data from a frequency table. The histogram has one bar for each interval. The length indicates the frequency. 1-10; 11-20; 21-30 una grafica que muestra datos de una tabla de frecuencias. Un histrograma tiene una barra para cada intervalo de la tabla que contiene valores de datos. La longitud de la barra indica la frecuencia para intervalo.

61 Bar Graph

62 The lengths of the bars are used to compare data. Un tipo de grafica en el que las longitudes de las barras se usan para representar y comparar datos.

63 Circle

64 A graph that displays data as sections in a circle. The total represents all of the data as 100%. El conjunto de todos los puntos en un plano que estan en la misma distancia, llamada radio, de un punto fijo, llamado centro.

65 Box and Whiskers

66 Used to look at mean, medium, and mode. Diagrama que divide un conjunto de datos en cuatro partes usando el extremo inferior, el cuartil Inferior, el cuartil superior y el extremo superior.

67 Stem-and-Leaf Plot

68 In order from least to greatest, this is used to show how data values are distributed. The last digit is in the leaf section and the remaining digits are in the stem. Diagrama que muestra como se distribuyen los valores de un conjunto de datos cada valor esta separado en una hoja (el ultimo digito) y un tallo (los digitos restantes). En un diagrama de tallo y hojas ordenada, las hojas para cada tallo estan en orden de menor a mayor.

69 Line Graph

70 Line graphs display change over time. Un tipo de grafica en la que los puntos que representan pares de datos se conectan por segmentos de recta.

71 Qualitative -how it smells -how it looks - The colors its green Quantitative - the things you count - how much - how many -one car

72 Scatter Plots

73 How two thins are correlated.(or connected) Are used to predict what might happen in the future. La grafica de un conjunto de pares de datos (x,y), que es un grupo de puntos en un plano de coordenadas.

74 Correlation

75 Correlation: How two things are connected.

76 Trend Line

77 A Trend line show and predicts what can happen in the future. They are positive negative or none. Trend Line: a line that divides the dots. When you are talking about trends as líneas de tendencia se usan normalmente con los gráficos de precios, sin embargo, también se puede utilizar con una serie de gráficos de análisis técnicos tales como MACD y RSI. Las líneas de tendencia se puede utilizar para identificar gráficos de tendencias positivas y negativas, por lo que un gráfico de tendencia positiva forma una línea upsloping cuando el soporte y los puntos de resistencia pivotes están alineados, y un gráfico de tendencia negativa forma una línea de pendiente descendente cuando los puntos de pivote de soporte y resistencia son alineados.

78 Mean

79 Mean The average Take the numbers 1,2,3 and add them then divide by the number of inputs. So 6 divide by 3 equals 2 The average is 2 la suma de los valores en conjunto de datos dividida por el numero de valores.

80 Median

81 The Middle number (1,2,3,4,5,6,7,8,9) el valor que esta en el medio de un conjunto de datos cuando los valores estan escritos en orden numerico. Si el conjunto de datos tiene un numero par de valores, la mediana es la media de los dos valores que estan en el medio.

82 Mode

83 The number that appears the most. (2,3,4,4,4,5,6,7) The mode is 4 En conjunto de datos, el valor que ocurre con mayor frecuencia. Un conjunto de datos puede no tener moda,o puede tener una moda o mas de una moda.

84 Congruent

85 Having the same shape and size Shape has the same size lengths

86 Similar

87 Same shape different size

88 Square Number

89 Numbers that are squares of integers A number that when placed in an array can be sorted into a square

90 Square Root

91 Square Roots A square root of a number n is a number m which, when multiplied by itself, equals n. So the square root of 9 equals 3 because 3x3= 9

92 Y=mx+b

93 Standard y-intercept formula

94 Slope Formula

95 Slope formula (x,y) 1’s 2’s

96 Complementary angles

97 Angles that add up to 90 degrees

98 Next Unit

99 Acute Angle

100 Acute Angle angles that measure between 1-89 degrees

101 Obtuse Angle

102 Obtuse Angle Angles that measure between 91-179 degrees

103 Right angle

104 Right angle an angle that measures 90 degrees

105 Straight angle

106 Straight angle an angle measures 180 degrees

107 Complement Angles

108 Complement Angles are two angle that measure exactly 90 Degrees

109 Supplementary angles

110 Supplementary angles are two angle that measure exactly 180 degrees 120 60

111 Line Segment

112 Line segment: is a part of a line. Line Segment

113 Congruent Line Segment

114 Congruent Lines segments: are two or more lines with the same measurement.

115 Congruent Angles

116 Congruent Angles: two or more angles with the exact measure in degrees.

117 Angle Bisector

118 Angle Bisector is a line that divides an angle into two parts.

119 Parallel Lines

120 Parallel Lines: two lines that never intercept or touch.

121 Perpendicular Lines

122 Perpendicular Lines: two lines that intersect at exactly 90 degrees.

123 Transversal

124 Transversal a line that intersects two parallel lines.

125 Corresponding angle Angles

126 Corresponding Angles Angles that share the same line so angles 1,3 5,7 2,4 6,8

127 Vertical Angles

128 Vertical Angles; are angle catty corner of across from each other. 1,4 3,2 5,8 7,8

129 Adjacent angle Adjacent angle are two angles that share wall. 1,3 5,6 2,4

130 Chords

131 Chords are any lines passing through a circle, they may not be the exact middle.

132 Skew Lines

133

134 Memorize 5, 2, 7, 4 are the same 1, 6, 3, 8 are the same

135 CRT

136 Commutative Property

137 commutative property 1+2+3 = 2+3+1 c+b+n = n+c+b

138 Associative Property

139 (1+2)+3+(4+5) = 1+2+(3+4)+5

140 Distributive Property 3(5+s) = 3x5 + 3xS

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