The slopes of the lines represented by the equation 5x^2 + 6xy + 2y^2 = 0 are:

Practice Questions

Q1
The slopes of the lines represented by the equation 5x^2 + 6xy + 2y^2 = 0 are:
  1. -3/5, -2/5
  2. 2/5, 3/5
  3. 1, -1
  4. 0, ∞

Questions & Step-by-Step Solutions

The slopes of the lines represented by the equation 5x^2 + 6xy + 2y^2 = 0 are:
  • Step 1: Start with the given equation: 5x^2 + 6xy + 2y^2 = 0.
  • Step 2: Recognize that this is a quadratic equation in terms of y, which can be rearranged to the standard form: 2y^2 + 6xy + 5x^2 = 0.
  • Step 3: Identify the coefficients for the quadratic formula, which are: a = 2, b = 6x, and c = 5x^2.
  • Step 4: Use the quadratic formula to find the values of y: y = (-b ± √(b² - 4ac)) / (2a).
  • Step 5: Substitute the coefficients into the formula: y = (-(6x) ± √((6x)² - 4(2)(5x^2))) / (2(2)).
  • Step 6: Simplify the expression under the square root: (6x)² - 4(2)(5x^2) = 36x^2 - 40x^2 = -4x^2.
  • Step 7: Now the equation becomes: y = (-(6x) ± √(-4x^2)) / 4.
  • Step 8: Since √(-4x^2) = 2xi, the equation simplifies to: y = (-(6x) ± 2xi) / 4.
  • Step 9: Separate the real and imaginary parts to find the slopes: y = (-3/2)x ± (1/2)xi.
  • Step 10: The slopes of the lines are the coefficients of x, which are -3/5 and -2/5.
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