Inverse variation formula:
[tex]y = \frac{k}{x} [/tex]
where 'k' is the constant of variation.
To find the indicated values, we have to know the value of k then substitute it to the given problem.
[tex]k = xy[/tex]
1. If y=3 when x=4, find y when x=6
k = xy
k = 4(3)
k = 12
y = k/x
y = 12/6
y = 2
2. If y= 10 when x=5, find y when x=25
k = xy
k = 5(10)
k = 50
y = k/x
y = 50/25
y = 2
3. If y= 12 when x= 8, find x when y=6
k = xy
k = 8(12)
k = 96
x = k/y
x = 96/6
x = 16
4. If y=10 when x= 5, find x when y =
5. If y=8 when x= 3, find y when x= 12
k = xy
k = 3(8)
k = 24
y = k/x
y = 24/1
y = 2
