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Pre-Algebra Key Terms
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Pre-Algebra Key Terms
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25 Questions

1.
Data in the form of numerical measurements. (described in numbers)

2. any set of ordered pairs or the mapping between a set of inputs and a set of outputs

3.
is a rigid motion transformation that 'slides' each point of a figure the same distance and direction

4. a variable (often denoted by y ) whose value depends on that of another.

5.
systems that have no solution

6.
a line that intersects two or more lines

7.
a line that acts as a mirror so that corresponding points are the same distance from the line

8.
Data in the form of recorded descriptions rather than numerical measurements. (described in words)

9.
is a decimal in which a digit, or a group of digits, repeat(s) infinitely,

10.
describes the direction and steepness of a line and is usually represented by the variable m. Also known as 'rise over run'

11. the independent variable

12. when the scale factor is between 0 and 1

13. the amount that the dependent value changes compared with amount that the independent value changes

14.
systems that have one or an infinite number of solutions

15.
if the sum of the squares of the two shorter sides of a triangle equals the square of the longest side, then the triangle is a right triangle

16.
a set of three periods, which stands for 'and so on'

17. when you collect information about two separate characteristics for the same person, thing, or event.

18.
when the value of a dependent variable decreases as the independent variable increases

19.
in the expression a * 10^n, the variable a. in scientific notation, it is greater that or equal to 1 and less than 10

20.
A relationship between two quantities in which the ratio of inputs to outputs is constant, and an input of 0, creates an output of 0.

21.
points that lie on the same straight line

22.
the first coordinate of an ordered pair in a relation (x,y)

23.
a pattern involving an ordered arrangement of numbers, geometric figures, letters, or other objects

24.
is the length of a line segment drawn from one base to the other base, perpendicular to both bases

25.
a rigid motion transformation that turns a figure on a plane about a fixed point, called the center of rotation, through a given angle.