![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The linear function is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=99066ed43e1a5e53c8a156d98150f852.png\")
.
The y - intercept is the value of y when x = 0.
\![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=99066ed43e1a5e53c8a156d98150f852.png\")
(Substitute 0 for x)
The y-intercept is 4. The graph crosses the y-axis at (0, 4).![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Observe the function; there is no x component.
\So, line is parallel to x axis.
\Check:
\The x-intercept is the value of x when y = 0.
\0 = 4 (Substitute 0 for y)
\It is not possible. So, the graph never crosses the x-axis.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
Use these ordered pairs to graph the equation.
\1. Draw a coordinate plane
\2. Plot the points
\3. Draw a line through these points.
\![\"equality](\"/userfiles/image/Library/Algebra%202/equality_graph_y_equal_4.gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The graph is.
\