Question 31

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waecmaths question: 

If $x\propto (45+\tfrac{1}{2}y)$ which of the following is true

Option A: 

x varies directly as y

Option B: 

x  varies inversely as y

Option C: 

x is partly constant and partly varies as y

Option D: 

x varies jointly as 45 and directly as y

waecmaths solution: 

Option A

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