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IgorC [24]
3 years ago
7

Suppose y varies directly with x. write an equation relating x and y. y=7 when x=42

Mathematics
1 answer:
WARRIOR [948]3 years ago
5 0

Answer:

y = \frac{1}{6} x

Step-by-step explanation:

Given y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the given condition that y = 7 when x = 42

k = \frac{y}{x} = \frac{7}{42} = \frac{1}{6}

y = \frac{1}{6} x ← equation of variation

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