GeoGebra
There are two ways to find out if two vectors are parallel in GeoGebra
. One is simply to solve the vector equation in CAS
. The other is to draw two lines and use a GeoGebra
command to check if they are parallel.
GeoGebra
Instruction 1
Method 1
- 1.
- Open
Algebra View
andGraphics View
underView
inMenu
. - 2.
- Enter your two vectors in
Algebra View
. - 3.
- Enter
<first vector> = k * <second vector>
in
CAS
. Be sure to fill in your vectors with the names they are given inAlgebra View
. ClickSolve
.
- 4.
- If you get a solution for , the vectors are parallel. If you get , the vectors are not parallel.
GeoGebra
Instruction 2
Method 2
- 1.
- Open
Algebra View
andGraphics View
inView
menu. - 2.
- Define your two vectors in
Algebra View
. - 3.
- Enter
Line(<point>, <direction vector>)
in
Input Bar
. Fill in(0,0)
for<point>
and one of the vectors for<direction vector>
. PressEnter
. The line should now be shownAlgebra View
andGraphics View
. - 4.
- Repeat the above method for your other vector as well.
- 5.
- Enter
AreParallel(<line>, <line>)
in
Algebra View
. Input your two lines into the fields and pressEnter
. Iftrue
is displayed inAlgebra View
, the vectors are parallel. Iffalse
is displayed inAlgebra View
, the vectors are not parallel.