Find the sum of the following (using number line)?

$4$ and $-5$

Find the sum of the following using number line

$-2$ and $-4$

Find the sum of numbers using the number line .

$9 \mathrm{and} 2$

Find the sum of the following using number line

$-3$ and $-1$

Find the sum of the following using number line

$-2$ and $5$

Find the sum of following

$4$ and $-6$

Find the sum of following numbers

$-7$ and $-5$

Find the sum of following

$6$ and $9$