Question

math question

Answer 1

varies directly means if one increases so does the other by an amount

y =k*x

as the square,
y = k*x^2

Answer 2

y is proportional to x an z^2

y = k*x*z^2

use th egiven values to get the konstant k value...

Answer 3

if it ever says varies inversley, it is divide instead "y varies inversley as x" y = k*(1/x)