math(short reviewer) Flashcards
is any system that can be written in the form
ax+by=p
cx+dy=a
system of linear equation in two variables
assignment of values to x and y so that all equations are satisfied
solution
lines that intersect have __solution and are_____
1 solution and consistent and independent
lines that coincide have__solution and are _____
have infinite solution and are consistent and dependent
lines that are parallel have___and are____
no solution and inconsistent
terms which cannot be precisely defined
undefined terms
terms that have a formal definition
defined terms
terms that are generally accepted as true without proof
axioms/postulates
statement that can be proven
theorem
Is an undefined term, a position in space without height,width and dimension and is named by one CAPITAL LETTER
point
is an undefined term, a continuous arrangeent of points and It’s length is infinite and is name by a single lowercase script letter or by any two points
Lines
a line is determined by 2 points
a flat surface that extends infinitely along it’s height and width but has no thickness, it is named by a single script capital letter or by 3 points not in the same line
an undefined term
plane
any 3 noncolinear points determine a pplane
points that lie on the same line
collinear
points that do not line in the same line
non collinear
points that lie in the same plane
coplanar points
points that do not lie in the same plane
non coplanar
enumeration, enumerate theses postulates from 1-6
_____2 points determine a line
_______through any 3 non colinear points there is one plane
_______if there are 2 points that lie in a plane a line would be joining them
______a plane contains atleast 3 non colinear points
_______through any 2 points there is exactly one line
______if 2 plane intersect then their intersection would be a line
1- 2 points determine a line
4- through any 3 non colinear points there is one plane
5- if there are 2 points that lie in a plane a line would be joining them
2- a plane contains atleast 3 non colinear points
3- through any 2 points there is exactly one line
6-if 2 plane intersect then their intersection would be a line
what is the theorem
if 2 lines intersect they intersect in exactly one 1 point
theorem 1
what is this theorem?
if 2 lines interesect there is exactly one plane that contains both
thorme 3
what is this theorem?
if a point lies out of a line then there is a plane that contains them both
theorem 2
is a compound statement of the form “if p then Q”
also called an if then statement
conditional statement
p is the what qand it begins with ifj?
hypothesis
what is p?
usually begins with then
conclusion
is a tentative assumption made in order to draw out logical consequences
hypothesis
is the necessary consequence of one or more propositions
conclusion
formed by interchanging the conclusion and the hypothesis( if q then p)
converse
formed by interchanging the hypothesis and the conclusion and negating them both( if not q then not p)
contrapositive
formed by negating both the hypothesis and conclusion(if not p then not q)
inverse