Question

Please help on this one?

Answer 1

`\large\boxed{B.\ 0.4}`

Explanation:

`Height=(Constant)/(Width)\qquad\text{multiply both sides by}\ Width\\eq0\\\\Constant=Height\cdot Width`

`\text{Select any point from the graph}\to(0.5,\ 0.8)\\\\Width=0.5,\ Height=0.8.\\\\\text{Substitute:}\\\\Constant=0.5\cdot0.8=0.4`