To solve the inequalities \(-2x + 1 < -9\) and \(-2x + 1 \geq -13\), we'll solve each inequality separately.
Solve the first inequality:
\[ -2x + 1 < -9 \] Subtract 1 from both sides: \[ -2x < -10 \] Now divide by -2, and remember to flip the inequality sign: \[ x > 5 \]
Solve the second inequality:
\[ -2x + 1 \geq -13 \] Subtract 1 from both sides: \[ -2x \geq -14 \] Now divide by -2, and flip the inequality sign: \[ x \leq 7 \]
Combine the solutions:
From the first inequality, we have \(x > 5\). From the second inequality, we have \(x \leq 7\).
Thus, the solution set is: \[ 5 < x \leq 7 \]
Inequality Notation:
The solution in interval notation is: \[ (5, 7] \]
Number Line Graph:
To represent this on a number line:
- Draw a number line and mark points at 5 and 7.
- Use an open circle at 5 (indicating that 5 is not included) and a closed circle at 7 (indicating that 7 is included).
- Shade the region between 5 and 7.
Would you like to visualize a sketch of the number line, or is the description sufficient?