Vocab Chapter Two Flashcards
A plane contains….
At least three non collinear points
Two planes….
Intersect in a line
Through two points there is….
Exactly one line
If two points lie in a plane….
The line containing them lies in the plane
Through three non collinear points there is…..
Exactly one plane
Two lines…
Intersect in a point
A line contains….
At least two points
RS=RS
Reflexive property
If x=y, then x+a=y+a
Addition property
If RS = TU And TU = VW, then RS=VW
Transitive property
X (a + b) = xa + xb
Distributive property
If x = y then xa = xb
Multiplication property
If x = y then x/a = x/b
Division property
If RS = TU then TU = RS
Symmetric property
If x = y then x -a = y-a
Subtraction property
The “If” part
Hypothesis
Switch and negate hypothesis and conclusion
Contrapositive
Unproven statement based upon patterns
Conjecture
Uses facts definitions properties theorems and laws of logic
Deductive reasoning
Logical statement with a hypothesis and conclusion
Conditional
Both true or both false
Equivilant statements
Used to write a biconditional statement
Iff
Statement and converse are both true and rewritten as one statement
Biconditional
Negate hypothesis and conclusion
Inverse
