Which point is on the graph of a direct variation equation in which k = 1.8?

A. (4, 0.45)
B. (7.2, 4)
C. (4, 7.2)
D. (0.45, 4)

y = kx
so
k = y/x

(4, 0.45) ; 0.45 / 4 = .1125 ...NO
(7.2, 4) ; 4 / 7.2 = 0.5556(5 repeat)...NO
(4, 7.2) ; 7.2 / 4 = 1.8 ...YES
(0.45, 4) ; 4 / 0.45 = 8.89(8 repeat) ....NO

answer
C. (4, 7.2)

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loathemuffin loathemuffin · Answer 2 · 2017-11-15T20:20:52+01:00

loathemuffin loathemuffin

15-11-2017

Yes, this answer is 7.2.
I wanted to give a second hand answer for others who want to be 100% sure.

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Which point is on the graph of a direct variation equation in which k = 1.8? A. (4, 0.45) B. (7.2, 4) C. (4, 7.2) D. (0.45, 4)

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Which point is on the graph of a direct variation equation in which k = 1.8?

A. (4, 0.45)
B. (7.2, 4)
C. (4, 7.2)
D. (0.45, 4)