Usually x (independent) variable is the input and y (dependent variable) is the output.
Usually x (independent) variable is the input and y (dependent variable) is the output.
You can graph the line and read out from the graph where the line intersects the X and Y axes. You can input values for Y until you find one that gives an X = 0 and input X values until you find one that gives a Y = 0 (This is the same as setting either X equal to zero and solving the equation the setting Y = 0 and solving)
To determine if a line on a graph represents a function, you can use the vertical line test. If a vertical line intersects the graph at more than one point, then the graph does not represent a function, as it would indicate that a single input (x-value) corresponds to multiple outputs (y-values). Conversely, if every vertical line crosses the graph at most once, the graph represents a function.
as the y-intercept increases, the graph of the line shifts up. as the y-intercept decreases, the graph of the line shifts down.
The vertical line test determines if a graph represents a function. If a vertical line intersects the graph at more than one point, the graph does not represent a function, as this indicates that a single input (x-value) corresponds to multiple outputs (y-values). Conversely, if every vertical line intersects the graph at most once, it confirms that the graph is a function.
8
The graph of y = x - 8 is a straight line. The slope of the line is 1, and it intersects the y-axis at the point y = -8.
y= -5
The graph is a horizontal line at y=3
It is the line that cuts through the y axis
3
The y-axis is the vertical line on a line graph.