TWISTER
TWISTER
Directions:
1) Each student picks a circle with a color (red, blue, green, yellow) from a bag.
2) The teacher spins the spinner (either on Smartboard or homemade) and a
color is revealed.
3) The teacher reads the first word of that color (yellow 1). Each yellow student
has two minutes to write a definition of that word.
4) The teacher collects the definitions and reads them aloud without saying
the student’s name.
5) The rest of the class votes on the best definition. The students get a point
for each vote they get.
6) The students with the most votes after all words have been read is the
winner.
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Choose a number.
relation
Relation
A set of ordered pairs.
Example: (1, 2), (3, 4), (5, r)
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Linear
equation
Linear equation
An equation whose graph
is a line.
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Slope
Intercept
form
Slope Intercept Form
y = mx + b
where m is the slope and
b is the y-intercept
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Rate of
change
Rate of change
Allows you to see the
relationship between 2
quantities that are
changing
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domain
Domain
Set of all x values
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y-intercept
y-intercept
The point where an
equation crosses the y-axis
(vertical axis)
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Independent
variable
Independent variable
The domain or x value of a
function.
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Direct
variation
Direct variation
y=kx, where k is the
constant of variation
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Parent
function
Parent function
y=x
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variable
variable
A symbol (letter) for a
number we do not know
yet.
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decreasing
decreasing
The graph of a decreasing
function always goes down
from left to right.
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Slope of a
Horizontal
line
Slope of a horizontal line
zero
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dependent
variable
dependent variable
The range or y value of a
function.
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Standard
form
Standard form
Ax + By = C
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x-intercept
x-intercept
The point where an
equation crosses the x-axis
(horizontal axis)
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function
function
A relation that for every x
value there is only one y
value.
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Point
Slope form
Point slope form
y – y1=m(x – x1)
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constant
constant
A number that is not
connected to a variable by
multiplication or division.
(Stands alone)
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increasing
increasing
The graph of an increasing
function always goes up
from left to right.
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range
range
The set of all the y values
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Slope of a
Vertical
line
Slope of a vertical line
undefined
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correlation
Correlation
The degree to which two
variables are associated.
For example, height and
weight have a moderately
strong positive correlation.
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Inverse
operations
Inverse operations
The quantity which cancels
out the a given quantity.
Example:
Addition-subtraction
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coefficient
Coefficient
A number that is
connected to a variable by
multiplication or division
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relation
Independent
variable
dependent
variable
increasing
linear
equation
direct
variation
standard
form
range
slope
intercept
form
parent
function
x-intercept
slope of a
vertical
line
rate of
change
variable
function
correlation
domain
decreasing
point
slope form
inverse
operations
y-intercept
slope of a
horizontal
line
constant
coefficient