Chapter 1
Midpoint Formula
( x1+x2 /2) (y1+y2 /2)
Deductive Reasoning
using logic to solve problems
Finish the pattern: 3, 1 , 4 ,1, 5
9, 2, 6, 5, 3
Parallel Planes
Planes that intersect
Negative Reciprocals
Flip and make negative
Distance Formula
d2= (x2-x1)2 + (y2+y1)2
Transitive Property
point A=B
Finish the pattern: A, D, G, J
M, P, S, V, Y
Skew Lines
Non-lines interest
Slope-Intercept form
y=mx+b
Types of Angles
acute, obtuse, right, straight
Scientific Methid
making a conclusion based on patterns
Conditional Statements
if-then
Same-side Exterior angles are
Supplementary (180)
x= -1
undefined
Angle Relationships
adjacent angles, vertical angles, linear pair, complementary angles, supplementary angles
Conjecture
a guess based on reasoning
Inverse
formed by negating
Alternate Exterior angles
Congruent (Same)
Perpendicular Lines
Lines that interest and form a 90 angel
intersecting lines and planes
two lines intersect at a point
two planes intersect at a line
Finish the pattern: 2, 5, 11, 23
47, 95, 191 383, 767
Converse
Formed by switching
Parallel Lines
lines that don't interest
x=9 and x=-5
m= undefined
i'ts parallel