1. **State the problem:** We need to graph the two linear equations $y = 4x - 1$ and $y = -x + 4$.
2. **Recall the slope-intercept form:** The general form of a linear equation is $y = mx + b$, where $m$ is the slope and $b$ is the y-intercept.
3. **Analyze the first equation $y = 4x - 1$:**
- Slope $m = 4$ means the line rises 4 units for every 1 unit it moves to the right.
- Y-intercept $b = -1$ means the line crosses the y-axis at $(0, -1)$.
4. **Analyze the second equation $y = -x + 4$:**
- Slope $m = -1$ means the line falls 1 unit for every 1 unit it moves to the right.
- Y-intercept $b = 4$ means the line crosses the y-axis at $(0, 4)$.
5. **Find x-intercepts by setting $y=0$:**
- For $y = 4x - 1$, set $0 = 4x - 1$ which gives:
$$
4x = 1 \\
\cancel{4}x = \frac{1}{\cancel{4}} \\
x = \frac{1}{4}
$$
- For $y = -x + 4$, set $0 = -x + 4$ which gives:
$$
-x = -4 \\
\cancel{-}x = \frac{-4}{\cancel{-}} \\
x = 4
$$
6. **Summary of key points:**
- Line 1 passes through $(0, -1)$ and $(\frac{1}{4}, 0)$.
- Line 2 passes through $(0, 4)$ and $(4, 0)$.
7. **Plot these points and draw straight lines through them to graph the equations.**
This completes the graphing of the two lines.
Graph Linear Ec528C
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