Write an equation that expresses the relationship. Use k as the constant of variation. x varies jointly as b and the square of h. A) x=kbh² B) x=kbkh² C) x=(kb)/(h²) D) x=(kh²)/(b)
1) x=kbh²
2) x=kbkh²
3) x=(kb)/(h²)
4) x=(kh²)/(b)