If the lines represented by the equation 3x^2 + 4xy + 2y^2 = 0 intersect at the

Practice Questions

Q1
If the lines represented by the equation 3x^2 + 4xy + 2y^2 = 0 intersect at the origin, what is the product of their slopes?
  1. -2/3
  2. -3/2
  3. 0
  4. 1

Questions & Step-by-Step Solutions

If the lines represented by the equation 3x^2 + 4xy + 2y^2 = 0 intersect at the origin, what is the product of their slopes?
  • Step 1: Identify the equation given, which is 3x^2 + 4xy + 2y^2 = 0.
  • Step 2: Recognize that this equation represents two lines that intersect at the origin.
  • Step 3: Understand that the general form of a conic section can be expressed as ax^2 + bxy + cy^2 = 0.
  • Step 4: Identify the coefficients from the equation: a = 3, b = 4, and c = 2.
  • Step 5: Use the formula for the product of the slopes of the lines, which is c/a.
  • Step 6: Substitute the values of c and a into the formula: c = 2 and a = 3.
  • Step 7: Calculate the product of the slopes: 2/3.
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