SOLUTION: 3n+6(n-12) is greater than or equal to 9 Solve the inequality and graph its solution set. I'm not sure how to get this problem solved... Thanks in advance for your time and

Algebra ->  Matrices-and-determiminant -> SOLUTION: 3n+6(n-12) is greater than or equal to 9 Solve the inequality and graph its solution set. I'm not sure how to get this problem solved... Thanks in advance for your time and       Log On


   

Question 393858: 3n+6(n-12) is greater than or equal to 9
Solve the inequality and graph its solution set.
I'm not sure how to get this problem solved...
Thanks in advance for your time and help!
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
3n+%2B+6%2A%28n+-+12%29+%3E=+9
3n+%2B+6n+-+72+%3E=+9
9n+-+72+%3E=+9
9n+%3E=+81
n+%3E=+9
If I plot n on the horizontal axis, and
I call the vertical axis f%28n%29, then the
solution should be every point on and to the
right of the vertical line through the point
(9,0). f%28n%29 isn't defined.