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To graph \( y = 3|x + 3| \), plot the vertex at \((-3, 0)\) and draw two lines with slopes of -3 and +3 that meet at the vertex, forming a V-shape.
Solución
While I cannot directly graph the equation, I can guide you through the process of graphing the equation \( y = 3|x + 3| \).
### Step-by-Step Guide to Graphing \( y = 3|x + 3| \)
1. **Identify the Vertex**:
- The expression inside the absolute value, \( x + 3 \), equals zero when \( x = -3 \). This point is the vertex of the graph.
- At \( x = -3 \):
\[
y = 3|(-3) + 3| = 3|0| = 0
\]
- So, the vertex is at the point \((-3, 0)\).
2. **Determine the Slope**:
- The absolute value function creates a V-shape. The slope of the lines will change at the vertex.
- For \( x < -3 \) (to the left of the vertex), the equation simplifies to:
\[
y = 3(-x - 3) = -3x - 9
\]
- For \( x > -3 \) (to the right of the vertex), the equation simplifies to:
\[
y = 3(x + 3) = 3x + 9
\]
3. **Calculate Points**:
- Choose a few values of \( x \) to find corresponding \( y \) values:
- For \( x = -4 \):
\[
y = 3|-4 + 3| = 3| -1 | = 3
\]
Point: \((-4, 3)\)
- For \( x = -2 \):
\[
y = 3|-2 + 3| = 3|1| = 3
\]
Point: \((-2, 3)\)
- For \( x = -6 \):
\[
y = 3|-6 + 3| = 3|-3| = 9
\]
Point: \((-6, 9)\)
- For \( x = 0 \):
\[
y = 3|0 + 3| = 3|3| = 9
\]
Point: \((0, 9)\)
4. **Plot the Points**:
- Plot the points \((-3, 0)\), \((-4, 3)\), \((-2, 3)\), \((-6, 9)\), and \((0, 9)\) on a coordinate plane.
5. **Draw the V-Shape**:
- Connect the points to form a V-shape, with the vertex at \((-3, 0)\) and the arms extending upwards.
### Summary
The graph of \( y = 3|x + 3| \) is a V-shape with its vertex at \((-3, 0)\) and slopes of -3 to the left and +3 to the right. You can use graphing software or a graphing calculator to visualize it more accurately.
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