Question

Identify if these are direct variation, inverse, or neither.

xy=1/5
y/x=8
y=2/x
8y=x

Answer 1

Solve the first one for y

Answer 2

1/5/y?

Answer 3

/x i mean

Answer 4

Direct Variation\[y~~\alpha~~x\]

Indirect Variation \[y~~\alpha~~\frac{ 1 }{ x }\]

Answer 5

If Y gets larger as X gets larger, it is a direct variation,
If Y decreases as X gets larger, it is indirect variation

Answer 6

it just ask for direct or inverse or neither.

the first one is direct or inverse? not sure

Answer 7

\[y = \frac{ 1 }{ 5x }\]

Y decreases as X becomes larger, Indirect variation

Answer 8

is that inverse?

Answer 9

inverse variation, inversely proportional , indirect variaton.. yeah all the same meaning

Answer 10

2nd one i believe is direct because y=8x?

Answer 11

yep, which is that then?

Answer 12

direct variation?

Answer 13

y becomes larger as x becomes larger, they are directly proportional

Answer 14

y = k*x

Answer 15

3rd one is inverse?

Answer 16

yep

Answer 17

last one of y=x/8, is that inverse? x is on the top

Answer 18

@DanJS

Answer 19

no that is direct

\[y = \frac{ 1 }{ 8 }x\]

y = k*x

k=1/8