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10 terms

Vectors

STUDY
PLAY
Vectors have...?
Magnitude (length) & direction (slope)
If a starting point isn't given, start at the...?
Origin
Tail is the...?
Start point
Head is the...?
End point (arrowhead)
d=√(x₂-x₁)²+(y₂-y₁)²
Distance formula
ll v ll means...?
Find the length of the vector (it's magnitude, use the distance formula)
If w= <a1, b1> and y= <a2, b2> the what is: WxY = (A1 x A2) + (B1 x B2)
Dot product (multiply vectors, gives a scaler answer)
Resultant vector is the...?
Answer
If two vectors are...then their dot product is zero
Perpendicular vectors
Vectors that travel in the same or opposite directions (same slope)
Parallel vectors