Definitions
across each other and congruent
TRIPLE POINTS
what is the slope in this equation:
y=-2x+5
-2
two lines that will never touch and have equal slope
what is the sum total of the 3 angles in a triangle?
180
what is a dilation
an increase or decrease in the size of an image
define perpendicular lines
two lines that cross and create 4 right angles ie 90 degrees
what is the slope of the following equation:
y=0.25-0.25x
negative -0.25
if m=-5 what is the slope of a perpendicular line?
1/5
if the three angles in a triangle are 3x, 4x, and 5x what is x?
15
the y value becomes negative
DOUBLE POINTS
define alternate interior angles and their relationship
angles that are inside the parallel lines and opposite the transversal; they are congruent
find the slope of these 2 points:
(-2,3) (5,17)
2
what is the slope of a perpendicular line to the line
y+1=2(3x+4)
-1/6
define the exterior angle rule of a triangle
the angle outside of the triangle is equal to the sum of the two angles inside the triangle that do not touch the exterior angle
TRIPLE POINTS
what is the rule for rotating 90 CC
(-y,x)
define the slope formula
m = y2-y1 divided by x2 - x1
what is the slope of the following points:
(9,2) (-7,2)
0
what is the equation of the line that is parallel to y=-4x-8 and passes through the point (3,14)
y=4x+2
DOUBLE POINTS
In ΔEFG, m∠E=(5x+6)∘
m∠F=(4x−6)∘
m∠G=(5x−2)∘
Find m∠G
63
what is the midpoint formula
listen to Mr Siyanov
define corresponding angles and their relationship
NO EXAMPLES ALLOWED
angles that are in the same position relative to the 2nd parallel line and are congruent
what is the slope of the following points:
(4,-5,)(4,7)
undefined
What is an equation of the line that passes through the point (4,2) and is perpendicular to the line 4x+3y=21?
y=3/4x-1
can a triangle contain 2 right angles? why not?
no bc the total of THREE angles must be 180
what is the distance formula
listen to Mr Siyanov