What are you talking about? Math Vocab 8th Grade

Equal Sign

• a pair of adjacent, supplementary angles (180 degrees) that sit on a straight line

• in the same direction as the rotating hands of a clock

• math word for "rules"

• a symbol that tells us that the information on the left has the same value as information on the right.

center of rotation

• n the direction that is opposite of the direction the hands on the clock move

• When x and y are both zero, (0,0)

• A fixed point around which shapes move in a circular motion to a new position.

• sides that are in the same position relative in two shapes

infinite solution to system

• the equations graph to identical lines. Same slopes and same y intercept.

• A line that intersects two or more lines, which may be parallel

• a linear relationship between x and y, it tells how much y changes when x changes by 1

• the process of replacing one variable with its equivalent to find part of the solution to the system.

counterclockwise

• rotated to the left

• a translation

• a reflection

• rotated right

Isolate

• a rule in which each input results in exactly one output only

• in a linear function, the value of the output when the input is 0.

• same shape, not same sizea transformation that TURNS a figure around a fixed point, usually the origin (8th grade)

• to get something by itself

absolute value

• line rises from left to right; as input increases, so does the output

• A function whose graph is not a straight line; lacks a constant rate of change

• Lines with the same slope, different y intercepts

• The distance a number is from zero on a number line

y coordinate

• y=mx+b, where m is the slope and b is the y-intercept of the line.

• a pair of adjacent, supplementary angles (180 degrees) that sit on a straight line

• The second number of an ordered pair. It corresponds to a number on the y-axis

• the opposite of each operation

perimeter

• Multiplying a number with each term inside of parenthesis

• the dependent variable of a function (y)

• The distance around a figure

• A formula that describes a straight line on a graph

corresponding sides

• A line that intersects two or more lines, which may be parallel

• a linear relationship between x and y, it tells how much y changes when x changes by 1

• sides that are in the same position relative in two shapes

• when two equations graph to identical lines. Same slopes and same y intercept.

System of Equations

• Having the same size and shape

• two or more equations with a common solution that makes all equations true

• y intercept, initial amount, one time amount, unchanging

• A pair of opposite angles formed by intersecting lines, equal measurement