Parallel and Perpedicular Lines
y-intercept
"b" stands for what?
slope
"m" stands for what?
opposite reciprocals
Fill in the blank: two lines that are perpendicular have slopes that are ___________ of each other.
parallel
Fill in the blank: two lines that have the same slope are called __________ lines.
-5
In the equation y = 2x - 5, what is the y-intercept?
y - y1 = m(x - x1)
Point-slope form
y = 3x + 8
Rewrite y - 2 = 3(x + 2) into slope-intercept form.
y = mx + b
Slope-intercept form
false
True or false: the slopes of two perpendicular lines can be 2 and -2.
-3/4
What is the slope of 3x + 4y = 8?
-5
What is the slope of a line parallel to y + 2 = -5(x - 5)
3
What is the slope of a line parallel to 9x - 3y = 12
4
What is the slope of a line parallel to y = 4x + 8?
4
What is the slope of a line perpendicular to 2x + 8y = 16?
-1/3
What is the slope of a line perpendicular to y - 5 = 3(x + 0.5)?
2
What is the slope of a line perpendicular to y = -1/2x + 3?
y = 8x - 12
Write the equation of a line parallel to y - 5 = 8(x + 3) that passes thru the poing (2, 4).
y = -3/4x + 9
Write the equation of a line parallel to 3x + 4y = 18 that passes thru the point (8, 3).
y = 2x - 5
Write the equation of a line parallel to y = 2x + 12 that passes thru the point (0, -5)
y = -4x + 13
Write the equation of a line perpendicular to x - 4y = 10 that passes thru (-2, 5).
y = -1/2x - 5
Write the equation of a line perpendicular to y = 2x - 12 that passes thru the point (0, -5)
x = 2
Write the equation of a line perpendicular to y = 6 that passes thru the point (2, 1)