The plot below shows a set of

$($

x

$1$

$,$

x

$2$

$)$

points along with their actual

y

labels. Overlaid onto the plot are the following lines:

Decision Boundary:

$1\mathrm{.}5$

x

$1$

$$

$0\mathrm{.}25$

x

$2$

$+$

$0\mathrm{.}25$

$=$

$0$

Positive Margin Boundary:

$1\mathrm{.}5$

x

$1$

$$

$0\mathrm{.}25$

x

$2$

$+$

$0\mathrm{.}25$

$=$

$1$

$,$ and

Negative Margin Boundary:

$1\mathrm{.}5$

x

$1$

$$

$0\mathrm{.}25$

x

$2$

$+$

$0\mathrm{.}25$

$=$

$$

$1$