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How do you find an ordered pair to represent -8u given u=<-1,4> and v=<3,-2>?

1 Answer

Aug 5, 2017

$- 8 \to u = < 8, - 32 >$ $-8vecu = <8, -32>$

Explanation:

We're given two vectors

$\to u = < - 1, 4 >$ $vecu = <-1,4>$

$\to v = < 3, - 2 >$ $vecv = <3,-2>$

and asked to find the value of $- 8 \to u$ $-8vecu$ , so vector $\to v$ $vecv$ I'm assuming is irrelevant..

Vector $\to u$ $vecu$ multiplied by the scalar quantity $- 8$ $-8$ is thus

$< - 8 (- 1), - 8 (4) >$ $<-8(-1), -8(4)>$

$= color(blue)(ulbar(|stackrel(" ")(" "<8, -32>" ")|)$

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