if y=kx^r then how to write y=4/x in equivalent form

Question

I need to use my knowledge about exponents and radicals to write the function rules in equivalent form

Answer 1

Lisa,

In your equation, the 4/x can be written as 4(x)^(-1) to match the form kx^r.

The final equation is y = 4x^-1 

Answer 2

y=kx^r

y=4/x can be written as y=4x^(-1)