# Determine whether each equation represents a proportional relationship. If it does, identify the constant of proportionality. a. y = 0.5x - 2 b. y = 1,000x c. y = x + 1

Determine whether each equation represents a proportional relationship. If it does, identify the constant of proportionality. $a.y=0.5x-2$
$b.y=1,000x$
$c.y=x+1$
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An equation has a proportional relationship if it can be written in the form y=kx where k is the constant of proportionality.
$a.y=0.5x-2$ does not have a proportional relationship since it has the term −2 on the right side.
$b.y=1,000x$ has a proportional relationship with a constant of proportionality of 1,000.
$c.y=x+1$ does not have a proportional relationship since it has the term 1 on the right side.