To sketch: the ellipse and find the standard form of equation, foci, eccentricity, and directrix
Answer to Problem 13E
Thestandard form of equation is
Explanation of Solution
Given:
Calculation:
End points of the two axes are (1,1) to (1,7) and the other is from (3,4) to (-1,4) .
The former axis is 6 units long and the later is 4 units long. Therefore
Here calculate other parameters as:
Therefore the foci of the ellipse can be written as
The eccentricity is
And the directrix is
Conclusion:
The standard form of equation is
Foci is
Directrix is
Eccentricity is
Chapter A5 Solutions
Calculus: Graphical, Numerical, Algebraic
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