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3 years ago

HELP I have attatched an image i will give extra points for best answer

Mathematics

1 answer:

Eduardwww [97]3 years ago

5 0

Answer:

y = 2x

Step-by-step explanation:

Given y is directly proportional to x then the equation relating them is

y = kx ← k is the constant of proportion

To find k use the condition when x = 4, y = 8, that is

8 = 4k ( divide both sides by 4 )

2 = k, thus

y = 2x ← equation of proportion

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