SOLUTION: Given the compound Inequality below, solve for the solution interval and graph the solution interval on a number line. (x <= 4 or x > 7) and (x < -2 U R) Note: R represents rea

Algebra ->  Inequalities -> SOLUTION: Given the compound Inequality below, solve for the solution interval and graph the solution interval on a number line. (x <= 4 or x > 7) and (x < -2 U R) Note: R represents rea      Log On


   



Question 1183776: Given the compound Inequality below, solve for the solution interval and graph the solution interval on a number line.
(x <= 4 or x > 7) and (x < -2 U R)
Note: R represents real numbers

Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
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Given the compound Inequality below, solve for the solution interval and graph the solution interval on a number line.
(x <= 4 or x > 7) and (x < -2 U R)
Note: R represents real numbers
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Notice that this set  ({ x < -2 } U R)  is the entire set of all real numbers.


Therefore, making intersection with the set  (x <= 4 or x > 7)  DOEAS NOT CHANGE the set  (x <= 4 or x > 7) .


THEREFORE, the intersection  (x <= 4 or x > 7) and (x < -2 U R)  is equal to  (x <= 4 or x > 7).


The latest set is the union of  {x <= 4}  and  {x > 7}.



The plot is shown below


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                  0                    4           7