Download - CPM Geometry Inequalities
InequalitiesInequalities
2 < 5 TRUE
What if I add/subtract a number to both sides?
+3 +3TRUE5 < 8
-12 -12
-7 < -4 TRUE
Does adding or subtracting change theInequality?
InequalitiesInequalities
So if we have
x + 4 < 10we can solve by subtracting 4 from each side and the inequality doesn’t change.
-4 -4
x < 6
InequalitiesInequalities
2 < 5 TRUE
What if I multiply/divide a positive number to both sides?
*10 *10TRUE20 < 50
10 < 25 TRUE
Does multiplying/dividing by a positive number change the inequality?
2 2
InequalitiesInequalities
2 < 5 TRUE
What if I multiply/divide a negative number to both sides?
*-10 *-10FALSE-20 < -50
What do we have to do with the inequality sign if we multiply by a negative number?
-20 > -50
InequalitiesInequalitiesWhat if I multiply/divide a positive number to both sides?
TRUE20 < 50
-10 < -25 FALSE
Does dividing by a negative number change the inequality?
-2 -2
InequalitiesInequalitiesWhat if I multiply/divide a positive number to both sides?
TRUE20 < 50-2 -2
-10 < -25 FALSE
What do we have to do with the inequality sign if we divide by a negative number?
-10 > -25
Solve the inequalitySolve the inequality
-7x + 8 < 22
Solve the inequality & graphSolve the inequality & graph
-4(3 +x) < 2x +10