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Ch 8 Math Vocab
Linear Functions
Question | Answer |
---|---|
A pairing of numbers. | relation |
Another name for 'x' in a relation or the input | domain |
Another name for 'y' in a relation or the output | range |
For each input there is exactly on ouput. | function |
A test to tell if a linear equation is a function or not. | vertical line test |
An equation whose graph is a line | linear equation |
An equation that is solved for y. | function form |
The set of points in a coordinate plane that represent all the solutions of the equation. | coordinate points |
A point where a graph crosses the x-axis. | x-intercept |
A point where a graph crosses the y-axis. | y-intercept |
The ratio of the line's vertical change to its horizontal change. | slope |
rise over run | slope |
y=mx+b | slope-intercept form |
m | slope |
b | y-intercept |
A line that lies as close as possible to the data points | best-fitting line |
f(x)= | function notation |
Consists of two or more linear equations with the same variables. | system of linear equations |
An ordered pair that is a solution of each question in the system. | solution of a linear system |