Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Two's complement
Table title:

Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Decimal value </th><th colspan=1 rowspan=1 > Binary (two's-complement representation) </th><th colspan=1 rowspan=1 > Two's complement (28 − n)2 </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 0 </td><td colspan=1 rowspan=1 > 0000 0000 </td><td colspan=1 rowspan=1 > 0000 0000 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > 0000 0001 </td><td colspan=1 rowspan=1 > 1111 1111 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > 0000 0010 </td><td colspan=1 rowspan=1 > 1111 1110 </td></tr>
<tr> <td colspan=1 rowspan=1 > 126 </td><td colspan=1 rowspan=1 > 0111 1110 </td><td colspan=1 rowspan=1 > 1000 0010 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 127 </td><td class="highlighted"  colspan=1 rowspan=1 > 0111 1111 </td><td colspan=1 rowspan=1 > 1000 0001 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > −128 </td><td class="highlighted"  colspan=1 rowspan=1 > 1000 0000 </td><td colspan=1 rowspan=1 > 1000 0000 </td></tr>
<tr> <td colspan=1 rowspan=1 > −127 </td><td class="highlighted"  colspan=1 rowspan=1 > 1000 0001 </td><td colspan=1 rowspan=1 > 0111 1111 </td></tr>
<tr> <td colspan=1 rowspan=1 > −126 </td><td class="highlighted"  colspan=1 rowspan=1 > 1000 0010 </td><td colspan=1 rowspan=1 > 0111 1110 </td></tr>
<tr> <td colspan=1 rowspan=1 > −2 </td><td class="highlighted"  colspan=1 rowspan=1 > 1111 1110 </td><td colspan=1 rowspan=1 > 0000 0010 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > −1 </td><td class="highlighted"  colspan=1 rowspan=1 > 1111 1111 </td><td colspan=1 rowspan=1 > 0000 0001 </td></tr>
</table>
Question:
How does the first number (significant bit) affect whether the integers are positive or negative?
Answer:
The two's complement 8-bit number represents positive integers from 0 to 127 (01111111), the rest of the combinations with the most significant bit as '1' represent the negative integers −1 to −128.