SOLVE EACH INEQUALITY. GIVE THE SOLUTION SET
IN BOTH INTERVAL NOTATION AND GRAPH FORM.
-(4 + R) + 2 - 3R < -14
-4 - R + 2 - 3R < -14
-2 - 4R < -14
-4R < -14 + 2
-4R < -12
Now we divide through by -4, remembering
that since it is a negative number we
are dividing both sides by, that we
must change the "<" to ">".
>
R > 3
The graph is like this:
----------------------------o==================>
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9
The interval notation is the abbreviation for this
graph:
(3, )
Edwin
