Solve the inequality |x+4|+|x-1|>5 . I know the strategy here is to get rid of the modulus by picking cases . my questino here is how to pick these cases ?
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Originally Posted by hooke Solve the inequality |x+4|+|x-1|>5 . I know the strategy here is to get rid of the modulus by picking cases . my questino here is how to pick these cases ? Use the definition of the absolute value: With your example you have: You now have 3 intervals with different inequalities: Solve for x. Draw the graphs of and y = 5 Determine those points on the graph of f where the y-coordinate is greater than 5.
Originally Posted by earboth Use the definition of the absolute value: With your example you have: You now have 3 intervals with different inequalities: Solve for x. Draw the graphs of and y = 5 Determine those points on the graph of f where the y-coordinate is greater than 5. hey thank you for clarifying !
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