dominikkovar09 dominikkovar09

21-10-2019
Mathematics

contestada

Let u = <-8, -9>. Find 7u. (2 points)

<-56, 63>

<-56, -63>

<56, -63>

<56, 63>

Respuesta :

Аноним Аноним

21-10-2019

Multiplying a vector by a scalar means to multiply each coordinate of the vector by said scalar.

So, we must multiply both entries by 7:

[tex]u=(-8, -9)\implies 7u=(-8\cdot 7, -9\cdot 7) = (-56, -63)[/tex]

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