Inequalities (5) Flashcards
1
Q
If you multiply or divide by a negative number…
A
You flip the inequality sign
2
Q
Combine inequalities when…
A
1) Signs point in same direction
2) You’re adding. Subtracting leads to mismatched signs, so no combining there.
3
Q
If you don’t know the sign of a variable…
A
You can’t multiply or divide by it
4
Q
Before picking numbers…
A
Try the algebra. Use algebra to try to make the statements look like the question (or question look like the statements)
5
Q
WATCH OUT
A
for solving for variables. Tough to think a negative sign might be there when it isn’t explicity listed.
