Question

Which of the following values satisfies the inequality 9 < 2x + 7 < 15?

A. X = 0
B. X = 2
C. x = 4
D. X = 6

Answer 1

B. X = 2

Explanation:

2(0)+7 = 7 --> 7<9 so no

* 2(2)+7 = 11 --> 9<11<15 so yes *

2(4)+7 = 15 --> 15 = 15 so no

2(6)+7 = 19 --> 19>15 so no