To solve the inequality \( 1 \leq \frac{j}{2} - 1 \), we can follow these steps:
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Add 1 to both sides: \[ 1 + 1 \leq \frac{j}{2} - 1 + 1 \] \[ 2 \leq \frac{j}{2} \]
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Multiply both sides by 2 (Note: Since 2 is positive, the inequality does not change direction): \[ 2 \cdot 2 \leq j \] \[ 4 \leq j \] or, \[ j \geq 4 \]
The solution to the inequality is \( j \geq 4 \).
Graphing the solution:
On a number line, you can represent this solution:
- Draw a number line.
- Place a closed circle (or dot) at 4 to indicate that 4 is included in the solution.
- Shade the line to the right of 4 to indicate all values greater than 4 are included.
The graph will look like this:
<----o=================>
4
Where:
- The closed circle at 4 indicates that 4 is part of the solution.
- The shaded arrow to the right indicates all numbers greater than 4 also satisfy the inequality.