Answer:
{6, 7}
Step-by-step explanation:
Plug in each number for x
Plug in 2
2(2)-4≥8
4-4≥8
0≥8 (2 is wrong because 0 is not greater than or equal to 8)
So we can eliminate the middle ones because two are in both b and c
Plug in 6
2(6)-4≥8
12-4≥8
8≥8 (This is correct because 8 is greater than or equal to 8)
Plug in 7
2(7)-4≥8
14-4≥8
10≥8 (This is correct because 10 is greater than or equal to 8)
