SOLUTION: how do you solve and graph the absolute value 2x > 6?

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Question 119564: how do you solve and graph the absolute value 2x > 6?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

abs%282x%29%3E6 Start with the given inequality


Break up the absolute value (remember, if you have abs%28x%29%3E+a, then x+%3C+-a or x+%3E+a)

2x+%3C+-6 or 2x+%3E+6 Break up the absolute value inequality using the given rule




Now lets focus on the first inequality 2x+%3C+-6


2x%3C-6 Start with the given inequality


x%3C%28-6%29%2F%282%29 Divide both sides by 2 to isolate x



x%3C-3 Divide


Now lets focus on the second inequality 2x+%3E+6


2x%3E6 Start with the given inequality


x%3E%286%29%2F%282%29 Divide both sides by 2 to isolate x



x%3E3 Divide



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Answer:

So our answer is

x+%3C+-3 or x+%3E+3


which looks like this in interval notation





if you wanted to graph the solution set, you would get

Graph of the solution set in blue and the excluded values represented by open circles