Feroz's Blog

Haven't done one of these in awhile. Anyway, I'm gonna cover Chapter 6.

Chapter 6 deals with circles, parabolas, hyperboles and ellipses and stuff.

ex. x^2/16 + y^2/25 = 1

1. Major axis = variable with the greater denom = y

2. Minor axis = variable with the smaller denom = x

3. Length of Major = 2 x sqrt(major) = 10

4. Length of Minor = 2 x sqrt(minor) = 8

5. Vertex = since y is the major = (0,5), (0,-5)

6. Other int. = same thing with the minor = (4,0), (-4,0)

7. Focus = sqrt(major - minor) = sqrt(2) = (0, sqrt(2)), (0, -sqrt(2))

8. Sketch the graph

There you go.