Answer
The $y-$ intercept is the error.
The correct $y-$ intercept is $-6$.
Work Step by Step
The given equation is
$\Rightarrow y=3x-6$
The slope-intercept form is
$\Rightarrow y=mx+b$
$y-$intercept is $b=-6$.
The slope is $m=3$
Hence, the $y-$ intercept is the error. The correct $y-$ intercept is $-6$.
