x = 6
given x varies inversely with y then
xy = k ← k is the constant of variation
to find k use the condition x = 4 when y = 9, hence
k = 4 × 9 = 36
x = ← inverse variation equation
when y = 6, then x = = 6
Look at the Venn diagram in the example. Describe what it shows about the relationship
1 answer:
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