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7th Grade Chapter 5

Math Vocab

X intercept The X coordinate of the point where the graph of a line crosses the X - axis.
X-axis The horizontal axis on a coordinate plane.
Ordered pair A pair of numbers that can be used to locate a point on a coordinate plane.
Origin The point where the x axis and y axis intersect on the coordinate plane.
Arithmetic sequence Terms of a sequence differ by the same nonzero number.
Input The value substituted into an expression of function.
Output The value that results from the substitution of a given input into an expression or function.
Quadrant The x- and y- axis divide the coordinate plane into four regions.
Common difference The difference in terms of an arithmetic sequence.
Constant of variation The constant k in direct and inverse variation equations.
Coordinate plane A plane formed by the intersection of horizonal and vertical number lines.
Linear equation An equation whose solutions form a straight line on a coordinate plane.
Y-axis The vertical axis on a coordinate plane.
Y intercept The y coordinate of the point where the graph of a line crosses the y-axis.
Rate of change A ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable.
Sequence An ordered list of numbers.
Slope A measure of the steepness of a line on a graph: the rise divided by the run.
Slope-intercept form A linear equation written in form y=mx+b where m represents slope and b represents the y-intercept.
Geometric sequence A sequence in which each term is multiplied by the same value to get the next term.
Linear function A function whose graph is a straight line.
Direct variation A linear relationship between two variables, x and y, that can be written in the form y=kx, where k is a nonzero constant.
Function An imput-output relationship that has exactly one output for each input.
Term An element or number in a sequence.
Created by: mwas