# 7th grade math review end-of-year terms

### 35 terms by wordmaniac100

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A review for the 7th grade math student!

### 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

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

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

Example:

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