1. **State the problem:** Solve the system of equations by graphing:
$$3x + y = -3$$
$$3x + y = 3$$
2. **Rewrite each equation in slope-intercept form $y = mx + b$ to identify slopes and intercepts:**
For the first equation:
$$3x + y = -3 \implies y = -3x - 3$$
For the second equation:
$$3x + y = 3 \implies y = -3x + 3$$
3. **Analyze the slopes and intercepts:**
- Both lines have slope $m = -3$.
- The first line has $y$-intercept $b = -3$.
- The second line has $y$-intercept $b = 3$.
4. **Interpretation:**
- Since both lines have the same slope but different intercepts, they are parallel lines.
- Parallel lines never intersect.
5. **Answer the questions:**
**a. What kind of lines are formed?**
They are parallel lines.
**b. Is there a point of intersection?**
No, there is no point of intersection.
**c. Identify the point of intersection.**
Since the lines do not intersect, there is no point of intersection.
**d. Based on the graphs, what kind of system of equation does it illustrate?**
It illustrates an inconsistent system (no solution).
**e. How many solutions are there in this kind of system of linear equation?**
There are zero solutions.
**Final conclusion:** The system has no solution because the lines are parallel and do not intersect.
Parallel Lines 32D221
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