![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The equation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=39d91de13c3ceaef7aeea565efdd2ba8.png\")
.
First find the y-intercept.
\The y-intercept is the value of y, when x = 0.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f862e782f24db7f991e153b0e911bb7b.png\")
(Substitute x = 0 in original equation)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4ca66ba73d2877eb84e60b0fa25ed1bd.png\")
(Apply Additive identity property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4a6cc3631df94c681419f45dd06df6e6.png\")
)
The y-intercept is 9, so the graph intersects the y-axis at (0, 9).
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Next find the x-intercept.
\The x-intercept is the value of x, when y = 0.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f4c5e33fa37803c558be58f43e620fd2.png\")
(Substitute y = 0 in original equation)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c9c354026ada3ab0bb8d31ced5c278a0.png\")
(Apply Additive identity property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=86aecfc07bbda3d19a67a8a29d3459b7.png\")
)
The x-intercept is 9, so the graph intersects the x-axis at ( 9, 0).
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
Graph Using Intercepts:
\Use these ordered pairs to graph the equation.
\1. Draw a coordinate plane.
\2. Plot the points.
\3. Draw a line through these points.
\![\"linear](\"/userfiles/image/Library/Algebra1/graph_linear_equation_x+y=9(1).gif\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
x-intercept is 9 and y-intercept is 9.