### Home > A2C > Chapter 11 > Lesson 11.3.4 > Problem 11-165

11-165.

For the following problems, use the general equation A*x*^{2} + B*y*^{2} + D*x* + E*y* + F = 0. Reminder: Uncheck the example before moving on to the next question.

In a circle with the center at (0, 0), A = B, and D = E = 0, and F < 0.

In a linear equation, A = B = 0.

In a sleeping parabola, A = 0 and B ≠ 0.

In a horizontal hyperbola, A > 0, B < 0, and F < 0.

In an ellipse, D = 0, E = 0, A ≠ 0, and B ≠ 0.

Write the equations of two lines and multiply.