Express the fractions as equivalent decimals: b. 2/5
1 answer:
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Answer:
y = - x
Step-by-step explanation:
Given that x and y vary directly then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = - 4, y = 6, thus
k = =
= -
y = - x ← equation of variation