if y varies directly with x, and y=10 while x=4 what is the direct linear variation equation
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Answer:
Variation Eqn. is y=5x.
Explanation:
We know that y∝x.
∴y=kx............(1), where k is the constant of variation & k≠0.
Now to determine k, we use the given cond. that when x=2,y=10. Let us submit these resp. values in (1) to get, 10=2k, or, k=5.
Letting k=5 in (1), we get the Variation Eqn. as y=5x.
Variation Eqn. is y=5x.
Explanation:
We know that y∝x.
∴y=kx............(1), where k is the constant of variation & k≠0.
Now to determine k, we use the given cond. that when x=2,y=10. Let us submit these resp. values in (1) to get, 10=2k, or, k=5.
Letting k=5 in (1), we get the Variation Eqn. as y=5x.
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