Math Problem Statement

Graph the parabola (pre calculus) 1. Vertex: (3,2) Focus: (3,0) 2. Vertex: (0,2) Focus: (0,5) give the Directrix, Length of LR, Endpoints and axis of symmetry

Solution

Here are the graphs for the two parabolas based on the given conditions:

Case 1: Vertex (3, 2) and Focus (3, 0)

  • Equation: (x3)2=8(y2)(x - 3)^2 = -8(y - 2)
  • Directrix: y=4y = 4
  • Length of Latus Rectum: 8
  • Endpoints of Latus Rectum: (7, 0) and (-1, 0)
  • Axis of Symmetry: x=3x = 3

Case 2: Vertex (0, 2) and Focus (0, 5)

  • Equation: x2=12(y2)x^2 = 12(y - 2)
  • Directrix: y=1y = -1
  • Length of Latus Rectum: 12
  • Endpoints of Latus Rectum: (6, 5) and (-6, 5)
  • Axis of Symmetry: x=0x = 0

Let me know if you need further clarification or additional details!


Here are 8 related questions you can explore:

  1. What happens to the parabola if the directrix is moved closer to the vertex?
  2. How does the focus determine the direction a parabola opens?
  3. How do you find the vertex from the general equation of a parabola?
  4. What is the significance of the latus rectum in determining the width of a parabola?
  5. How do the equations of horizontal and vertical parabolas differ?
  6. How do changes in pp (distance to focus) affect the shape of a parabola?
  7. How can you determine the equation of the axis of symmetry from the equation of the parabola?
  8. What are some real-world applications of parabolas?

Tip: The distance between the focus and the vertex, pp, controls how "wide" or "narrow" the parabola is. A larger p|p| results in a wider parabola.

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Math Problem Analysis

Mathematical Concepts

Parabolas
Vertex form of parabola
Focus and directrix

Formulas

Equation of a parabola (vertex form)
Distance formula

Theorems

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Suitable Grade Level

Pre-Calculus