To draw the graph of the equation 15x + 5y = 30, we first need to rearrange it in the format y = mx + b, where m is the slope and b is the y-intercept.
1. **Rearranging the Equation**:
We start with the original equation:
15x + 5y = 30
Subtract 15x from both sides:
5y = -15x + 30
Now, divide everything by 5:
y = -3x + 6
This tells us that the slope (m) is -3, and the y-intercept (b) is 6. This means the line crosses the y-axis at (0, 6).
2. **Finding Additional Points**:
To draw the line accurately, we can find another point. Let’s substitute x = 0 to find the y-intercept:
y = -3(0) + 6 = 6
This gives us the point (0, 6).
Next, let’s find another point. If we let x = 2:
y = -3(2) + 6 = 0
This gives us another point (2, 0).
3. **Plotting the Points**:
Now we have two points: (0, 6) and (2, 0). We can plot these points on a coordinate plane:
- (0, 6) is on the y-axis.
- (2, 0) is on the x-axis.
4. **Drawing the Graph**:
Draw a straight line through these two points, extending it in both directions. This line represents the equation 15x + 5y = 30.
5. **Conclusion**:
The graph of 15x + 5y = 30 is a straight line with a negative slope, indicating that as x increases, y decreases. You can also find more points if you wish to make your graph more precise.