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Level 626

Parts of a Graph


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Title
A necessary, must have part, that appears at the top of the graph, displaying what the data is about.
dependent variable
the measure of change in the independent variable
independent variable
the tested varaible
Intervals
Literally "between values". An interval is a set of numbers between 2 numbers a and b and possibly including a, or b, or both.
Series
sum of the terms of a sequence
key
A box that identifies symbols or lines on a graph.
Domain
The ______________________ is all the possible INPUT, X, values.
Range
The difference between the greatest number and the least number in a set of data.
Root/zero
where function crosses x axis; x-coordinate where function equals zero
y-intercept
the point where the line crosses the y-axis
Continuity
Refers to whether a function contains holes, jumps, or breaks
increasing
ƒ'(x)>0
decreasing
ƒ'(x)<0
Local maximum point
a point on the function that is greater than or equal to surrounding points
Local minimum point
a point on the function that is less than or equal to surrounding points.
Absolute/global maximum
the largest point on the function; a point on the function that is greater than or equal to all other points on the function
Absolute/global minimum
the smallest point on a function; a point on the functions that is less than or equal to all other points on the function
horizontal asymptote
a line that the curve approaches as x goes to infinity but never reaches
vertical asymptote
comes from a factor in the denominator that doesnt cancel out
concave up
When f '(x) is increasing, f(x) is
concave down
When f '(x) is decreasing, f(x) is
point of inflection
When f '(x) changes from increasing to decreasing or decreasing to increasing, f(x) has a
A function is even
if you can substitute a -x for every x in the function, simplify, and get back the exact original function.
A function is odd
if you can substitute a -x for every x in the function, simplify, and get back the exact opposite of the entire function. i.e. all the signs have changed!
y axis
has the dependent variable, the vertical line on a graph
Graph Title
tells what graph is about
line graph
shows change over time
Bar graph
Bars do not touch; categorical data is typically on the horizontal axis; to describe: comment on which occurred the most often or least often
circle graph
compares percents, fractions or decimals; another name for pie chart
Quantitative Data
Measurements that are recorded on a naturally occurring numerical scale.
Qualitative Data
Measurements that cannot be measured on a natural numerical scale; they can only be classified into one of a group of categories.
x axis
The horizontal axis on a coordinate graph, for the varaible that controls the other (an axis ia a line on a graph)
manipulated variable
another name for independent variable
responding variable
another name for dependent variable
MIX
acronym for Manipulated, Independent, X axis
DRY
acronym for Dependent, Responding, Y axis
increments
Evenly spaced units; the axis of a graph must use proper _______________