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2 years ago

The following table shows a proportional relationship between x and y.

Mathematics

1 answer:

RUDIKE [14]2 years ago

8 0

Answer:

Assume x is directly proportional to y :

$y \: \alpha \: x \\ y = kx$

when y is 9, x is 2:

substitute to find value of k :

$9 = (k \times 2) \\ k = \frac{9}{2}$

Therefore, equation is:

${ \boxed{ \boxed{2y = 9 x}}}$

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