Questions: Express the graph shown in color using interval notation. Also express the graph as an inequality involving x.
Transcript text: Express the graph shown in color using interval notation. Also express the graph as an inequality involving $x$.
Solution
Solution Steps
Step 1: Identify the Interval
The graph shows a number line with a shaded region starting from 5 and extending to the right indefinitely. This indicates that the interval starts at 5 and goes to positive infinity.
Step 2: Determine the Type of Interval
Since the shaded region starts at 5 and includes 5 (indicated by the solid dot), the interval is closed at 5. The interval extends to positive infinity, which is always open.
Step 3: Write the Interval in Interval Notation
The interval notation for a closed interval starting at 5 and extending to positive infinity is \([5, \infty)\).
Step 4: Express the Inequality
The inequality that represents this interval is \(x \geq 5\).