1. **State the problem:** We need to graph the line given by the equation $$18x - 48y = 1440$$ using intercepts.
2. **Rewrite the equation:** Start by isolating $$y$$ to find the slope-intercept form.
$$18x - 48y = 1440$$
Subtract $$18x$$ from both sides:
$$-48y = -18x + 1440$$
Divide both sides by $$-48$$:
$$y = \frac{-18x + 1440}{-48}$$
Show cancellation:
$$y = \frac{\cancel{-18}x + \cancel{1440}}{\cancel{-48}} = \frac{18}{48}x - \frac{1440}{48}$$
Simplify the fractions:
$$y = \frac{3}{8}x - 30$$
3. **Find the intercepts:**
- **x-intercept:** Set $$y=0$$ and solve for $$x$$.
$$0 = \frac{3}{8}x - 30$$
Add 30 to both sides:
$$30 = \frac{3}{8}x$$
Multiply both sides by $$\frac{8}{3}$$:
$$x = 30 \times \frac{8}{3} = 80$$
- **y-intercept:** Set $$x=0$$ and solve for $$y$$.
$$y = \frac{3}{8} \times 0 - 30 = -30$$
4. **Interpretation:** The line crosses the x-axis at $$(80, 0)$$ and the y-axis at $$(0, -30)$$.
5. **Final answer:** The intercepts are $$x=80$$ and $$y=-30$$, which can be used to graph the line.
Line Intercepts 6Da50F
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.