Question

Help me i need this for khan academy

Answer 1

y = (9/2)x

Explanation:

Since the relation is proportional, the equation is ...

y = kx

For any (x, y) pair, you can find k as ...

y/x = k

Using the first pair, we get ...

k = 9/2

so the equation is ...

y = (9/2)x

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In decimal, that's ...

y = 4.5x