Question

If I varies inversely with R and I = 0.75 when R = 14, which equation should be used to show this relation?

Answer 1

`I=10.5/R`

Explanation:

`"the initial statement is "Iprop1/R`

`"to convert to an equation multiply by k the constant"`
`"of variation"`

`I=kxx1/R=k/R`

`"to find k use the given condition"`

`I=0.75" when "R=14`

`I=k/RrArrk=IR=0.75xx14=10.5`

`"equation is " color(red)(bar(ul(|color(white)(2/2)color(black)(I=(10.5)/R)color(white)(2/2)|)))`