Expressions, Equations, and Inequalities Flashcards
1
Q
Order of Operations
A
PEMDAS
Parentheses
Exponents
Multiplication and Division
Addition and Subtraction
2
Q
Distributive Property
A
Multiply the number on the outside of the parentheses by every single term on the inside.
3
Q
Like Terms
A
Terms that either have the same variable (3x and 5x) or no variable at all (9 and 12)
4
Q
Variable
A
A letter that represents a number (most common used variable is x)
5
Q
Coefficient
A
Number that is in FRONT of the variable.
6
Q
Constant
A
Number that does not have a variable.
7
Q
Inverse
A
Opposite
8
Q
Steps to Solving an Equation
A
- Get rid of parentheses (if needed)
- Combine like terms (if needed)
- undo addition or subtraction by using inverse
- undo multiplication or division by using inverse
9
Q
How to set up an equation from a word problem.
A
10
Q
Graphing Inequalities
A
- Greater than (open circle)
- Less than (open circle)
- Greater than or equal to (closed circle)
- Less than or equal to (closed circle)
11
Q
Inequality Rules
A
IF you divide/multiply by a negative number FLIP the inequality!