Application of Lines

coefficient and nonzero constant $k$ in the direct variation equation $y=kx$

variable, typically graphed on the $y$-axis, whose values depend on the values of the independent variable

relationship between two variables that can be written in the form:

variable, typically graphed on the $x$-axis, whose values determine the values of the dependent variable

ratio that compares the amount of change in the dependent variable to the amount of change in the independent variable

vertical change between two points on a line

horizontal change between two points on a line

ratio of the change in $y$ to the change in $x$ for two points on a line, represented as:

value of $y$ where a graph touches or crosses the $y$-axis