Sagot :
Answer and step-by-step explanation:
"PS: Since your question is incomplete, I performed two variations using the given equation."
y = 28 when x = 7, find k.
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In a direct variation, "y varies directly as x" or y is directly proportional to x" translates to:
[tex]y=kx[/tex]
*k represents constant
For finding the constant, the formula will be:
[tex]k=\frac{y}{x}[/tex]
Since we're finding the constant, we'll be using that formula.
- First, input:
[tex]k=\frac{28}{7}[/tex]
- Lastly, divide:
k = 4
Tada!! The constant (k) in a direct variation is 4.
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Next, in an inverse variation, "y varies inversely as x" or "y is inversely proportional to x" translate to:
[tex]y=\frac{k}{x}[/tex]
*k represents constant
For finding the constant, the formula will be:
[tex]k=xy[/tex]
Since we're finding the constant, we'll be using that formula.
- First, input:
[tex]k=(28)(7)[/tex]
- Lastly, multiply:
k = 196
Tada!! The constant (k) in an inverse variation is 196.
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I hope it helps :).