Parallel lines are lines that will never _________.
Cross, touch, intersect
Perpendicular lines are lines that form _____ angles.
right
Vertical Angles are _________.
Congruent
m = 0
What is Ms. Baretsky's favorite color?
Green
Parallel lines have ______ slopes.
Congruent / equal
Perpendicular lines have _______________ slopes.
Opposite reciprocal slopes
A Linear Pair is an angle pair that are __________ and __________.
- adjacent
- supplementary
a vertical line has a slope of ....
m = undefined
What is Ms. Baretsky's favorite number?
18
Write the equal of a line parallel to y = -2x + 3 and passes through the point (-1,5).
y - 5 = -2 ( x + 1 )
Write the equation of a line perpendicular to
and passes through the point (5,-9)
y + 9 = -3/2 ( x - 5 )
When you have parallel lines cut by a transversal there are 3 congruent angle pairs formed.
Name them!
1. Corresponding
2. Alternate Interior
3. Alternate Exterior
Horizontal lines are parallel to which axis???
x - axis
What is the third planet from the sun?
Earth
What is the midpoint formula?
When you have parallel lines cut by a transversal, you have two supplementary angle pairs formed.
Name them!
1. Same side interior
2. Same side exterior
Vertical lines are parallel to which axis?
y - axis
6 x 7
42
Given the equation 2x+4y=−12 and the point (1,2), find the equation of a line that is parallel to the original line and passes through the given point.
y - 2 = -1/2 ( x - 1 )
Write an equation in slope-intercept form for the line that passes through (4,1) and that is perpendicular to a line whose equation is 2x - 3y = 9
y = (-3/2)x + 7
Solve for x and y.
x = 38
y = 122
On your white board draw the graph of x = -2
teachers checks
What does partition mean?
to divide or separate