# Mr. Jones 08 Semester Test Review

## Terms

undefined, object

copy deck

- variable
- a symbol, usually a letter, used to represent a #
- estimate 18% of 40
- 18% ->20 -> 1/5; 1/5 of 40 is about 8
- "of" followed by a # or a representation of a #, means what?
- TO MULTIPLY
- y-intercept; y =3x - 2
- y-coordinate of a point where the line crosses the y-axis; (0, -2)
- no slope
- line is vertical
- what property is 6 + (2 + 3) = (6 + 2) + 3?
- associative property of addition
- inverse operation
- operations that "undo" each other
- what property is 13 x 1 = 13?
- identity property of multiplication
- estimate 21 out of 25
- 21->20-> 20/25 = 4/5 ->80%; 80%
- √47 round to the nearest whole
- 7
- range
- values of Y
- 20% to a fraction
- 1/5
- what property is 6 + 1 = 1 + 6?
- commutative property of addition
- negative number
- a number less than 0
- y = 3x - 2, what's the slope?
- the coefficient of x is the slope; 3
- what property is 2(6 + 3) = 2(6) + 2(3)?
- distributive property
- absolute value
- the distance between a # and 0 on the number line
- numerical expression
- a mathematical expression that has a combination of numbers and at least 1 operation
- algebraic expression
- a combination of variables, numbers and at least 1 operation
- zero slope
- line is horizontal
- 1,230,000 in scientific notation
- 1.23 x 10 to the 6th power
- multiplicative inverse
- a fraction and its "flip" 1/3 = 3/1
- less
- whatever follows "less" comes 2nd in the subtraction problem
- 12 + 3x = 4x
- x =12
- the sum of a negative number and a positive number is __ 0
- sometimes
- domain
- values of X
- the sum of a negative # and 0 is __ a negative #
- always
- order of operations
- 1. parentheses 2. exponents 3. multiplication 4. division (which ever comes first , 3 or 4) 5. addition 6. subtraction (which ever comes first, 5 or 6)
- 5x, what's the coefficient?
- 5
- expresssion
- doesn't have an =
- additive inverse
- an integer and its opposite
- $2 for 4 hours
- .50ç/hr
- if a whole number greater than 1 is multiplied by a fraction less than 0, what is the product?
- a negative number less than the fraction
- -6/9 __ -1/2
- <
- y = 3x - 2, what's the y-intercept?
- the term without a variable; -2
- open sentence
- an equation WITH a variable
- four more than twice a number is 8
- 4 + 2x = 8
- dependent variable
- Y
- slope formula
- m = Y2 - Y divided by X2 - X
- positive slope
- line is rising from left to right
- equation
- has an =
- term
- separated by and addition or subtraction sign
- 3% to a decimal
- 0.03
- $3 skateboard, 25% off. what's the sale price?
- $2.25
- the sum of a positive number and a negative number is ___ a negative number
- sometimes
- y/? = rise/?
- Y/X= rise/run
- evaluate
- to solve an expression by replacing the variables
- negative slope
- line is falling from left to right
- less than
- whatever follows "less than" comes 1st in the subraction problem
- 0.941 to a %
- 94.1%
- if you know the y-intercept, then x is ...
- zero
- 94 out of 100 into a %
- 94%
- independent variable
- X
- 3 to 6
- 1 to 2; 1/2; 1:2