Question

If $f=\left\{\right(4,5),(5,6),(6,-4\left)\right\}$ and $g=\left\{\right(4,-4),(6,5),(8,5\left)\right\}$.Then $f+2g=?$

Answer 1

Given that:

$f=(4,5),(5,6),(6,-4),g=(4,-4),(6,5),(8,5)$

$f+2g=(4+8,5-8),(5+12,6+10),(6+16,-4+10)$

$f+2g=(12,-3),(17,16),(22,6).$

Hence, this is the answer.