$[1$ Point$($s$)]$ In the context of the perceptron learning algorithm, the vector $W=(w_0,w_1,w_2)=(6,4,2)$ completely specifies a straight line classifier that has

$($a$)$ a slope of $2$ and $x_2-$intercept at $3$

$($b$)$ a slope of $2$ and $x_2-$intercept at $-3$

$($c$)$ a slope of $-2$ and $x_2-$intercept at $-3$

$($d$)$ a slope of $-2$ and $x_2-$intercept at $3$

$($e$)$ None of the above