What is the range and domain of a straight line on a graph?
The range of a straight line on a graph is all the possible y-values that the line can have. In other words, it represents the set of all values that the dependent variable (y) can take on.
The domain of a straight line on a graph is all the possible x-values that the line can have. In other words, it represents the set of all values that the independent variable (x) can take on.
For a straight line that is not vertical, the range and domain both extend to negative and positive infinity, meaning that there are no restrictions on the values that x and y can take on.
However, for a vertical line, the domain is restricted to a single value (the x-coordinate of the vertical line) because the line extends infinitely in the y-direction but does not extend in the x-direction. In this case, the range is still unrestricted and extends to negative and positive infinity.