B. Find the constant of variation and write the equation representing the relationship between the quantities in each of the following tables,
1. y varies directly as x
2. y varies inversely as x
1 2
4
2 4 6 8
у 10 20 30 40
24 12 8 6
y
3. z varies jointly as x and y
4. z varies directly as x and inversely as y
2
3
4
5
2
10
y
4
6
6
6
8
10
y у
4
8
14
10
28/5
z
16
36
64
100
2
4
5
1. y varies directly as x
2. y varies inversely as x
1 2
4
2 4 6 8
у 10 20 30 40
24 12 8 6
y
3. z varies jointly as x and y
4. z varies directly as x and inversely as y
2
3
4
5
2
10
y
4
6
6
6
8
10
y у
4
8
14
10
28/5
z
16
36
64
100
2
4
5