Pregunta
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Draw the graph of

Ask by Harris Edwards. in the United States
Dec 09,2024

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To graph , identify the vertex at , note the upward opening, and plot additional points like , , , and . Connect these points to form the parabola.

Solución

To graph the function , we can follow these steps:
  1. Identify the Vertex: The function is in the vertex form of a quadratic equation, which is . Here, , , and . Thus, the vertex of the parabola is at the point .
  2. Determine the Direction: Since is positive, the parabola opens upwards.
  3. Find the Axis of Symmetry: The axis of symmetry is the vertical line that passes through the vertex, which is .
  4. Calculate Additional Points: To get a better idea of the shape of the graph, we can calculate a few additional points by choosing values of around the vertex.
    • For :
      So, the point is .
    • For :
      So, the point is .
    • For :
      So, the point is .
    • For :
      So, the point is .
  5. Plot the Points: Now we can plot the points we have:
    • Vertex:
    • Points: , , ,
  6. Draw the Parabola: Connect the points with a smooth curve to form the parabola.

Summary of Key Points:

  • Vertex:
  • Opens upwards
  • Axis of symmetry:
  • Additional points: , , ,
This will give you a clear graph of the function .

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Bonus Knowledge

To graph the function , start by identifying its vertex. Here, the vertex is at , which is where the graph makes its minimum due to the coefficient of being positive. Next, we note that the graph is a parabola that opens upwards. The value of 9 in front of the squared term means the parabola is narrower compared to standard parabolas. Finally, you can plot multiple points around the vertex by choosing values for and calculating to get a better representation of the shape before connecting these points smoothly.
To ensure accurate proportions, you might want to sketch a set of axes and mark the key points. For example, when (the vertex), ; also check points like where and where . This symmetry will help in crafting a neat parabola!

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