Yes, it can be written as  $y\ =\ kx$  

No, it can not be written as  $y=kx$  

Yes, because  $y=x$  

No, because it doesn't go through the origin.

Yes, because x and y are friends.

No, because x and y vary inversly.

No, equation cannot be written as  $y=kx$  

Yes, because x is greater than y.

Yes, because  it can be written as  $y\ =\frac{x}{20}$  

No, because  $y=\frac{x}{20}$  

Yes because it has a constant rate , goes through the origin and can be written in form  $y=kx$  

 No, because it does not go through the origin.

direct variation because  $y=\frac{x}{6}$  

inverse variation because  $y=\frac{6}{x}$  

neither

Direct variation because  $y=-3x$  

Inverse variation because  $y=\frac{3x}{7}$  

Niether, because $y=-3x\ +7$  

Direct variation because  $y=\frac{1}{2}x$  

Inverse variation because  $y=\frac{2}{x}$  

Nether because  $y=4x\ -8$  

Direct variation because $y=12x$  

Inverse variation because  $y=\frac{12}{x}$  

Neither because  $y=x-12$  

$y=5x$

$y=\frac{5}{x}$

$y=10x$

$y=\frac{x}{10}$

No, doesn't go through the origin.

No, does not have a constant rate.

Yes, because $m=60.5h$

Yes, because $h=60.5m$