Mathematics
Grade 9
15 min
Write inverse variation equations
Write inverse variation equations
Tutorial Preview
1
y varies inversely with x. If y = 4 when x = 3, write the equation.
2
a varies inversely with b. If a = 1/2 when b = 10, write the equation.
3
The time 't' to drive a distance varies inversely with speed 's'. If it takes 2 hours at 60 mph, write the equation.
Sample Practice Questions
Easy
y varies inversely with x. If y = 2 when x = 5, which equation describes this relationship?
0.y = 10/x
1.y = 2.5x
2.y = x/10
3.y = 10x
Easy
y varies inversely with x. If y = 3 when x = 4, what is the equation?
0.y = 12/x
1.y = 12x
2.y = x/12
3.y = 7/x
Easy
p varies inversely with q. If p = 6 when q = 2, what is the equation?
0.p = 3/q
1.p = 12/q
2.p = 8/q
3.p = 12q
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