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Find (x,y) such that (8,2)(x,y) = (28,22)
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Find (x,y) such that (8,2)(x,y) = (28,22)

User Roalz
by
7.2k points

1 Answer

3 votes

Answer:

(x,y) = (3.5, 11)

Explanation:

(8,2)(x,y) = (28,22)

Dot product, so:


(8,2)(x,y) = (8x,2y) = (28,22)

Then


8x = 28


x = (28)/(8) = 3.5

And


2y = 22


y = (22)/(2) = 11

So

(x,y) = (3.5, 11)

User Suspectus
by
8.7k points
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