Parallel Lines
The slopes of parallel lines are ___.
The same
The slopes of perpendicular lines are ___.
Opposite reciprocals
What is the formula to find the length of a line segment in a coordinate plane called?
The distance formula
What is the formula used to find the middle of a segment on a coordinate plane called?
The midpoint formula
What is the equation for slope-intercept form?
y=mx+b
What is the slope of the line y = 3x + 5?
3
What is the slope of a line perpendicular to y = 4x - 9?
-1/4
What is the length of a segment that passes through the points (5, 2) and (2, 6)?
5
What is the midpoint of the segment whose endpoints (5, 9) and (3, 1)?
(4, 5)
What is the equation for a line in standard form?
Ax+By=C?
What is the slope of a line parallel to y = 1/3 x - 5?
1/3
What is the slope of a line perpendicular to the line y = 9?
Undefined
What is the length of a segment whose endpoints are (-3, 2) and (6, 8)?
10.81
What is the midpoint of a segment whose endpoints are (-3, 5) and (-2, 7)?
(-2.5, 6)
What is the equation of a line in point-slope form?
y-y1=m(x-x1)
What is the slope of a line that passes through (1, 3) and (-2, 5)?
-2/3
What is the slope of a line perpendicular to the line that passes through the points (-1, 3) and (2, 6)?
-1
What is the length of a segment whose endpoints are (-6, 7) and (-10, -4) to the nearest tenth?
11.7
What is the endpoint of a segment whose midpoint is (5, 4) and one endpoint is (1, 3)
(9, 5)
Give an equation of a line that passes through the point (2, 3) with a slope of -4.
y - 3 = -4(x - 2) or y=-4x+11
What is the equation of a line that is parallel to y=2x+1 and passes through the point (4, 5)?
y-5=2(x-4) or y=2x-3
What is the slope of a line perpendicular to the line that passes through (-5, -2) and (-3, -3)?
2
What is the length of a segment whose endpoints are (2, 2) and (-2, 10) in simplified radical form?
4 sq rt 5
What is the endpoint of a segment whose midpoint is (-2, -3) and one endpoint is (-7, 3)?
(3, -9)
What is the equation of the line that passes through the points (0, 6) and (-4, 2)?
y = x + 6 or
y - 6 = 1(x - 0) or
y - 2 = 1(x + 4)