Tenor Chapter 9 Pre-Algebra
Terms in this set (20)
A function is a special relation in which each element of the domain is paired with exactly one element in the range.
The variable in a function that is subject to change.
The variable in a relation with a value that depends on the value of the independent variable.
vertical line test
If any vertical line drawn on the graph of a relation passes through no more than one point on the graph for each value of x in the domain, then the relation is a function.
The operation performed on the input of the function.
A way to name a function that is defined by an equation. In function notation the equation y=3x-8 is written as f(x)=3x-8.
An equation in which the variables appear in separate terms and neither variable contains an exponent other than 1. The graph of a linear equation is a straight line.
A function for which the graph is a straight line.
A table organizing the input, rule, and output of a function.
The x-coordinate of a point where a graph crosses the x-axis.
The y-coordinate of a point where a graph crosses the y-axis.
rate of change
A change in one quantity with respect to another quantity.
A relationship that has straight line graphs.
constant rate of change
A rate of change between any two points in a linear relationship is the same or constant.
The ratio of the rise, vertical change, to the run, or horizontal change. The slope describes the steepness of the graph. (m)
A special type of linear equation that describes rate of change. A relationship such that as x increases in value, y increases or decreases at a constant rate.
constant of variation
The slope, or rate of change, in the equation y=kx, represented by k.
A linear equation in the form y=mx+b, where m is the slope and b is the y-intercept.
system of equations
A set of two or more equations with the same variables.
A method for solving systems of linear equations algebraically.
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