If y varies inversely as x and x=5 when y=20, then what is the constant of variation, k?


Answer :

Answer:

k=100

y the varies inversely as x

[tex]y \alpha {x}^{ - 1} [/tex]

that is y is equal to inverse of x

introducing a constant k, you have

[tex] k = x \times y \\ 5 \times 20 \\ 100[/tex]