Practice!

Sample Problem

Solve the following inequality then graph it

2 < x + 4 and x + 5 < 9

Solution

From 2 < x + 4 and x + 5 < 9, we can get

x > -2 and x < 4,  it can be expressed as:  -2 < x < 4,

Graph A is the only graph that correctly uses open circles for both the points.