Question: Graph the equation $5x+6y=30$
1. **State the problem:** We need to graph the linear equation $$5x + 6y = 30$$.
2. **Rewrite the equation in slope-intercept form:** To graph easily, solve for $y$:
$$5x + 6y = 30$$
Subtract $5x$ from both sides:
$$6y = 30 - 5x$$
Divide both sides by $6$:
$$y = \frac{30 - 5x}{6}$$
Use \cancel to show division:
$$y = \frac{\cancel{30} - 5x}{\cancel{6}}$$ (simplify later)
Simplify the fraction:
$$y = 5 - \frac{5}{6}x$$
3. **Identify slope and intercept:**
- Slope $m = -\frac{5}{6}$
- Y-intercept $b = 5$
4. **Find intercepts:**
- When $x=0$, $y=5$ (y-intercept)
- When $y=0$, solve $5x + 6(0) = 30$:
$$5x = 30$$
$$x = \frac{30}{5} = 6$$
So x-intercept is $(6,0)$.
5. **Plot points and draw line:**
Plot points $(0,5)$ and $(6,0)$ on the coordinate plane and draw a straight line through them.
This line represents the graph of the equation $5x + 6y = 30$.