Mathematics Grade 9 15 min

Write and solve inverse variation equations

Write and solve inverse variation equations

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1

y varies inversely with x. If y = 4 when x = 3, write the equation.

2

y varies inversely with x. If y = 10 when x = 2, find y when x = 5.

3

y varies inversely with x. If y = 6 when x = 4, find x when y = 8.

Sample Practice Questions

Easy
y varies inversely with x. If y = 2 when x = 5, what is the equation?
0.y = 10/x
1.y = 2.5/x
2.y = 7/x
3.y = x/10
Easy
y varies inversely with x. If y = 3 when x = 4, what is the equation?
0.y = 12/x
1.y = 7/x
2.y = 1.33/x
3.y = x/12
Easy
y varies inversely with x. If y = 6 when x = 2, find y when x = 4.
0.12
1.8
2.3
3.4

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