Question

Help please. .....................

Answer 1

we can use formula

`y=ab^x`

now, we can find a and b

Initially , price is 500

so,

At
`x=0,y=500`

`500=ab^0`

`a=500`

now, we can plug back

`y=500(b)^x`

At
`x=3,y=10`

we can use it and find b

`10=500(b)^3`

now, we can solve for b

and we get

`b=0.27144`

so,

annual depreciation rate is 27.144%.......Answer