3 years ago

Find an equation of variation where y varies directly as x and y = 0.8 when x = 0.4

Mathematics

1 answer:

GrogVix [38]3 years ago

7 0

Answer:

y = 2x

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 0.8 when x = 0.4

k = $\frac{y}{x}$ = $\frac{0.8}{0.4}$ = 2

y = 2x ← equation of variation

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