#1**+1 **

The graph shows an inverse variation.

Inverse variations are \(z=xy\). \(z\) in this case βis 10. If you take each column and multiply them together, you get 10. This shows that the relation is inversed.

CoopTheDupe
Mar 5, 2018

#2**+1 **

Thanks, Coop!!!!!....here's one more way to determine this :

If direct we have that

y = ax so

2 = a(5)

a = 2/5

So......looking at x = 10

y = (2/5)* 10 = 4

But y should = 1

So....not direct

If inverse, we have that

y = a/x

2 = a/ 5

10 = a

So.....looking at x = 10, we have that

y = 10 / 10 = 1

Which is exactly what we require......so.......inverse

CPhill
Mar 5, 2018