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It is given that y varies directly as x. If y = 5 when x = 4 determine the constant of variation. A) -4/5 B) 4 C) 5 D) 5/4

It is given that y varies directly as x. If y = 5 when x = 4 determine the constant of variation. A) -4/5 B) 4 C) 5 D) 5/4
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1 vote
It is given that y varies directly as x. If y = 5 when x = 4 determine the constant of variation.

A) -4/5
B) 4
C) 5
D) 5/4

asked
User Ruddra
by
7.7k points

2 Answers

4 votes
D) 5/4, I had this question on a quiz.
answered
User Bacteria
by
8.7k points
7 votes
When one thing varies to another there is always a constant of variation. direct variation it is; y = kx

use the x,y values to find k
5 = 4k
5/4 = k

answer is D
answered
User Brank Victoria
by
8.5k points
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