Question

Tell whether x and y show direct variation, inverse variation, or neither.

3xy = 1

5/x = y

4/5x= y

6xy= 0

y/9x= 1

Answer 1

@razor99

Answer 2

@LunyMoony

Answer 3

In each equation either make x or y subject..
For Example:
1) 3xy = 1
y = 1/3x

Can u do like this with every equation?

Answer 4

so the first one would be inverse

Answer 5

yes correct

Answer 6

the second one would be direct because we would change it to y= 5x?

Answer 7

?

Answer 8

no.. look carefully

Answer 9

would it be 5= yx

Answer 10

you have to make y subject y =5/x
it is inversely propotion

Answer 11

i dont understand

Answer 12

what is the second question lets do step by step

Answer 13

ok here the y is already been made subject so u dont have to change it

Answer 14

so wouldn't it just be direct then?

Answer 15

no.. the x is in denominator..
if the x is in numerator it would be directly propotional , if x is denominator then it would be inversely propotional.. its an easy way to remember

Answer 16

oh okay

Answer 17

so can u solve all now?