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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