Question

What is the least integer value that satisfies the inequality 2x – 7 ≥ 3?

a. 7
b. 8
c. 9
d. 10

Answer 1

C. 9

Explanation:

Looking at the graph, we can see the lowest number which lies in the shaded region of the graphed are is 9. Therefore, that is the answer.

Answer 2

c. 9

Explanation:

2^(7 – 7) =1 1≥ 3? No

2^(8 – 7) =2 2≥ 3? No

2^(9 – 7) =4 4≥ 3? Yes