1. **State the problem:** We need to sketch the graph of the linear equation $x + 3y = 14$.
2. **Rewrite the equation in slope-intercept form:** The slope-intercept form is $y = mx + b$, where $m$ is the slope and $b$ is the y-intercept.
Starting with:
$$x + 3y = 14$$
Subtract $x$ from both sides:
$$3y = 14 - x$$
Divide both sides by 3:
$$y = \frac{14 - x}{3}$$
Show canceling for clarity:
$$y = \frac{\cancel{14} - x}{\cancel{3}}$$
Simplify:
$$y = \frac{14}{3} - \frac{1}{3}x$$
3. **Identify slope and intercept:**
- Slope $m = -\frac{1}{3}$
- Y-intercept $b = \frac{14}{3}$
4. **Find x-intercept:** Set $y=0$ and solve for $x$:
$$0 = \frac{14 - x}{3}$$
Multiply both sides by 3:
$$0 = 14 - x$$
Solve for $x$:
$$x = 14$$
5. **Plot points:**
- Y-intercept at $(0, \frac{14}{3})$
- X-intercept at $(14, 0)$
6. **Draw the line:** Connect these two points with a straight line. The slope $-\frac{1}{3}$ means the line goes down 1 unit for every 3 units it moves to the right.
**Final answer:** The graph is a straight line crossing the y-axis at $\frac{14}{3}$ and the x-axis at 14 with slope $-\frac{1}{3}$.
Linear Equation F977E7
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.