Lines & Angles Oh My!
The slopes of parallel lines are
The same.
Angles that are on opposite sides of the transversal and inside the parallel lines.
Alternate interior angles
Means angles or line segments have the same measure.
Congruent
These type of lines never cross.
Parallel lines
The slope of the line perpendicular to the line y=2x-4 is
2.
Angles that are on the same side of the transversal and outside the parallel lines.
Same-side exterior angles
Means that angles add up to 180 degrees.
Supplementary
The sum of the interior angles is
180.
What's the slope of the line parallel to y=1/2x+6?
m=1/2
Angles that are straight across from each other.
Vertical angles
These lines form a 90 degree angle
Perpendicular lines
Opposite reciprocals.
What can be said about two lines is alternate interior angles are congruent?
The lines are parallel.
Angles that are relatively in the same position to the parallel lines and transversal.
Corresponding angles
Angles that when put together form a straight line.
Linear Pair.
Two points that lie on the same line are called
Collinear
What's the equation of the line that is perpendicular to y=1/3x-4 and goes through the point (1,6)? [State your answer in slope-intercept form.]
y=-3x+9
If m<1=49 and <1 is supplementary to <2, what's the measure of <2?
m<2=131.
The name of the line that crosses through parallel lines and creates several angles
Transversal
The number that when multiplied by another results in 1.
Reciprocal