Graph:
*Inv. of mult. by -2 is div. both sides by
-2, so reverse inequality sign
*Visual showing all numbers less than -2 on the number line
Graph:
Since we needed to indicate all values less than -2, the part of the
number line that was to the left of -2 was darkened.
Since we are not including where it is equal to, an open hole was used.
Graph:
*Get x terms on one side, constants on the other side
*Inv. of mult. by 2 is div. both sides by 2
*Visual showing all numbers less than or equal
to 4 on the number line
Since we are including where it is equal to, a closed hole was used.
Graph:
*Mult. both sides by the LCD
*Get x terms on
one side, constants on the other
*Visual showing all numbers greater than or equal to 3 on the number line
Since we are including where it is equal to, a closed hole was used.
Last revised on July 27, 2011 by Kim Seward.
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