Find the length of the latus rectum of the parabola y^2 = 16x.

Practice Questions

Q1
Find the length of the latus rectum of the parabola y^2 = 16x.
  1. 4
  2. 8
  3. 16
  4. 2

Questions & Step-by-Step Solutions

Find the length of the latus rectum of the parabola y^2 = 16x.
  • Step 1: Identify the equation of the parabola. The given equation is y^2 = 16x.
  • Step 2: Compare the given equation with the standard form of a parabola, which is y^2 = 4px.
  • Step 3: From the standard form, identify that 4p = 16.
  • Step 4: Solve for p by dividing both sides of the equation by 4. So, p = 16 / 4 = 4.
  • Step 5: Use the formula for the length of the latus rectum, which is 4p.
  • Step 6: Substitute the value of p into the formula: Length of latus rectum = 4 * 4 = 16.
  • Parabola Properties – Understanding the standard form of a parabola and the relationship between its parameters, specifically how to derive the length of the latus rectum from the value of p.
  • Latus Rectum Calculation – Applying the formula for the length of the latus rectum (4p) to find the specific length based on the given equation of the parabola.
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