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Need help with the question

Need help with the question-example-1
User Bryce Frank
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1 Answer

28 votes
28 votes

Answer:

y = 3

Explanation:

given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

to find k use the condition y = 57 when x = 19 , then

57 = 19k ( divide both sides by 19 )

3 = k

y = 3x ← equation of variation

when x = 1 , then

y = 3 × 1 = 3

User Ahmed Mounir
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