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7th grade math review end-of-year terms

A review for the 7th grade math student!
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rational numbers
numbers that can be written as a fraction
irrational numbers
numbers that can not be written as a fraction, never terminates or repeats
scientific notation
a small way of writing numbers whose abosolute value is very large or very small
square root
one of a number's two equal factors
radical sign
the symbol used to indicate a square root
Pythagorean Theorem
the formula between the lengths of the legs and the hypotenuse for any right triangle
ratio
comparison of two numbers or quantities by division
rate of change
a rate describing how one quantity changes in relation to another
percent of change
the percent that an amount changes from its original amount
vertical angles
opposite angles formed by intersecting lines
complementary angles
where the sum of the measures equals 90 degrees.
supplementary angles
where the sum of the measures equals 180 degrees.
reflection
the mirror image produced by flipping a figure over a line
translation
the movement of a figure from one position to another without turning it
radius
the segment from the center to any point on the circle
diameter
a chord that passes through the center
circumference
the distance around a circle
complex figure
made up of two or more shapes
function
a relationship that assigns exactly one output value for each input value
slope
the ratio of the rise,or vertical change, to the run,or horizontal change
direct variation
what the relationship is called when the ratio of two variable quantities is constant
slope-intercept form
the nonporportional linear function formula of y=mx+b
y-intercept
the y-coordinate of the point where the line crosses the y-axis.
scatter plot
a graph that shows the relationship,if any, between two sets of data
nonlinear functions
functions that do not have constant rates of change
monomial
a number, a variable, or a product of a number and one or more variables
lateral face
any flat surface of a solid that is not a base
lateral surface area
the sum of the areas of a solids lateral faces
total surface area
the sum of the areas of all of a solids surfaces
quartiles
values that divide a set of data into four equal parts
lower quartile
the median of the lower half of a set of data
upper quartile
the median of the upper half of a set of data
interquartile range
the difference between the upper quartile and the lower quartile
outlier
data that are more than 1.5 times the value of the interquartile range beyond either quartile
inequality
an open sentence that uses the symbol <,≤,>,or ≥ to compare two quantities