Question

Is y=x^2 a proportional relationship?

Answer 1

Answer:

is y=x^2 a proportional relationship?

${ \sf{yes. \: constant \: of \: proportionality = 1}}$

is y=2+x a proportional relationship?

${ \sf{no. \: unless \: y \: is \: proportinal \: to \: (2 + x)}}$

is y=2/x a proportional relationship?

${ \sf{yes. \: where \: proportianality \: constant \: is \: 2}}$

is y=2x a proportional relationship?

${ \sf{yeah. \: constant \: is \: 2}}$