A vector A passes through the points A(7,9) and B(3,5)

      

A vector A passes through the points A(7,9) and B(3,5). Vector b passes through the points C(x, -2) and D(-5,0). If a is parallel to b, determine the value of x.

  

Answers

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$\frac{5-9}{3-7}=\frac{0 + 2}{-5 - x}$

x= -7

$a=\begin{pmatrix} 4 \\ 4 \\ \end{pmatrix}$ $b=\begin{pmatrix} x + 5 \\ -2 \\ \end{pmatrix}$

k = -2

-2(x + 5) = 4

x = -7

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raphael answered the question on January 16, 2017 at 06:22

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