| Parallel and Perpendicular | Parallel | Perpendicular |
|---|---|---|
|
2 lines that never touch or cross, like railroad tracka
What is a parallel line?
|
Y-5=2/3(x-12)
Y-5=2/3x-8 +5 +5 Y=2/3x-3
Solve for parallel.
(12, 5) y=2/3x -1 |
M= 1/3 = -3
Y-4=-3(x-2) Y-4=-3x+6 +4 +4 Y=-3x+10
Solve for perpendicular
(2, 4) y=1/3x -1 |
|
Two lines that cross to make a right angle
What is a perpendicular line?
|
Y+1=2(x+3)
Y+1=2x+6 Y+1=2x+6 -1 -1 Y=2x+5
Solve for parallel.
(-3, -1) y=2x+3 |
M= -1/2
Y-8=-1/2(x-1) Y-8=-1/2x+1/2 +8 +8 Y=-2x+8 1/2
Solve for perpendicular
(1, 8) y=2x+1 |
|
Same
Are slopes for parallel opposite or the same?
|
Y-3=3(x-1)
Y-3=3x-3 +3 +3 Y=3x
Solve for parallel.
(1, 3) y=3x+2 |
M=1/3
Y-0=1/3(x-0) Y-0=1/3x+0 +0 +0 Y=1/3+0
Solve for perpendicular
(0, 0) y=-3x +2 |
|
Opposite
Are slopes for perpendicular same or opposite?
|
Y=5
Solve for pa pa parallel~
(2, 5) y=2 |
M=-1/2
Y-0=-1/2(x-5) Y-0=-1/2x+2 1/2 +0 +0 Y=-1/2x+2 1/2
Solve for perpendicular
(5, 0) y+1=2(x-3) |
|
Parallel
Y-8 ---------- = x*2 2 x 2 Y+8=2x -8 -8 Y=2x -8
Is the line perpendicular, parallel, same line, or none of that above?
Line A: line B: Y= 2x +8, y-8 -------- =x 2 |
X=4
Sooooolve for parallel.
(4, 6) x=3 |
Y-10=-1/8(x-4)
Y-10=-1/8x+1/2 +10 +10 Y=-1/8+10 1/2
Solve for perpendicular
(4, 10) y=8x-1 |
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