madisonraefife
contestada

If vector u has its initial point at (-17, 4) and its terminal point at (8,-11), u= ? i + ? J. If v=14j, 2(u-v)= ? i + ? J
*the question marks stand for the blanks in the question

Respuesta :

kudzordzifrancis

Answer:

u=25i-15j

2(u-v)=50i-58j

Step-by-step explanation:

Vector u has its initial point at (-17, 4) and its terminal point at (8,-11).

This implies that;

[tex]u=\binom{8}{-11}-\binom{-17}{4}=\binom{25}{-15}[/tex]

u=25i-15j

If v=14j

Then

2(u-v)=2(25i-15j -14j)

2(u-v)=2(25i-29j)

2(u-v)=50i-58j

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