Algebra 1 vocab ch 1 - 5

The flashcards below were created by user squirty99 on FreezingBlue Flashcards.

1. a letter that is used to represent one or more numbers
variable
2. a collection of numbers, variables and operations
variable expression
3. numbers
values
4. Replacing each variable in an expression by a number is called
evaluating the expression
5. writing the units of each variable in a real life problem
unit analysis
6. translating words into mathematics
verbal model
7. the number of times the base is used as a factor
exponent
8. indicate the order in which the operations should be performed
• grouping symbols
• parentheses and brackets
9. mathematicians have established these to evaluate a expression involving more than one operation
order of operations
10. formed when an equal sign is placed between 2 expressions
equation
11. an equation that contains one or more variables
open sentence
12. when variables are replace with numbers and the statement is true
solution of an equation
13. finding all the solutions of an equation
solving the equation
14. a type of open sentence
inequality
15. number that produces a true statement when it is substituted for the variable in an inequality
solution of an inequality
16. writing algebraic expressions, equations, or inequalities that represent real life situations
modeling
17. expression, equation or inequality
mathematical model
18. information, facts or numbers that describe something
data
19. a way to organize data
• bar graph
• line graph
20. a rule that establishes a relationship between 2 quantities called the input and output
function
21. a table that lists inputs and outputs
input-output table
22. collection of all the input values
domain
23. collection of all the output values
range
24. point labeled 0 on number line
origin
25. negative, 0, or positive number
integer
26. the point that corresponds to a number is the
graph of the number
27. drawing the point
plotting
28. 2 points that are the same distance from the origin but on opposite sides of the origin are
opposites
29. speed and direction
velocity
30. to prove that a statement is false you need to show that it is not true for only one example, called a
counterexample
31. rectangular arrangement of numbers into rows and columns
matrix
32. each number in a matrix is called
entry or element
33. the factors are distributed to each term of the sum
distributive propertiy
34. in a term that is the product of a number and a variable, the number is the what of the variable
coefficient
35. terms in an expression that have the same variable raised to the same power
like terms
36. allows you to combine like terms that have variables by adding coefficients
distributive property
37. when all like terms have been combined and no grouping symbols are left
simplified expression
38. for every real number except 0 there is a
reciprocal
39. the product of a number and its reciprocal is one
inverse property of multiplication
40. measure of likelihood that an event will occur
probability
41. different possible results of probability
outcomes
42. a collection of outcomes in probability
event
43. the outcomes for an event you wish to have happen
favorable outcomes
44. probability based on repetitions of an actual experiment
experimental probability
45. number of favorable outcomes divided by the number of unfavorable outcomes
odds
46. a different equation with the same solution as the original equation
equivalent equations
47. each time you apply a transformation to an equation, you are writing a
solution step
48. an equation where the variable is raised to the first power and does not occur in a denominator, inside a square root or inside absolute value symbols
linear equation
49. the transformations used to isolate the variable are based on what property
properties of equality
50. two triangles that have equal corresponding angles
similar triangles
51. 2 quantities measured in the same units
ratio of a to b
52. an equation that is true for all values of the variable
identity
53. an algebraic equation that relates 2 or more real life quantities
formula
54. 2 quantities measured in different units
rate of a per b
55. a rate per one given unit
unit rate
56. formed by 2 real number lines that intersect at a right angle
coordinate plane
57. each point in the plane corresponds to an __________ of real numbers
ordered pair
58. first number in ordered pair
x coordinate
59. second number in an ordered pair
y coordinate
60. graphing pairs of data on a coordinate axis
scatter plot
61. an ordered pair that makes the equation true
solution of equation
62. the x coordinate of a point where a graph crosses the x axis
x intercept
63. the point where graph crosses y axis
y intercept
64. the number of units a line rises or falls for each unit of horizontal change from left to right
slope
65. compares 2 different quantities that are changing
rate of change
66. 2 quantities that vary directly
direct variation
67. y=mx+b is written in
slope-intercept form
68. any set of ordered pairs
relation
69. the value of f at x or f(x)
function notation
70. set of all points where x is in the domain of the function
graph of a funciton
71. if there is no single line that passes through all the data points
best fitting line
72. when points on a scatter plot can be approximated by a line with positive slope, x and y have a
positive correlation
73. when points can be approximated by a line with negative slope, x and y
have a negative correlation
74. when the points cannot be well approximated by a straight line
relatively no correlation
75. y-y1 = m(x-x1)
point-slope form
76. Ax+By=C
standard form of the equation of a line
77. a method of estimating the coordinates of a point that lies between 2 given data points
linear interpolation
78. method of estimating the coordinates of a point that lies to the right or left of all the given data points
linear extrapolation
 Author: squirty99 ID: 226390 Card Set: Algebra 1 vocab ch 1 - 5 Updated: 2013-07-09 05:14:56 Tags: Algebra vocab Folders: Description: Algebra 1 vocab ch 1 - 5 Show Answers: