What is the constant of variation, k, of the direct variation, y = kx, through (5, 8)?
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Answer:
k = 8/5
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y = k x
where
k is the constant of variation
in this problem we have
the point
so
x=5
y=8
substitute
y/x = k
8/5= k
therefore the answer is ↓↓↓
k = 8/5
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