a.
To Find whether graph of equation is parabola, ellipse or hyperbola from discriminant method.
a.
Answer to Problem 56RE
The equation represent an ellipse.
Explanation of Solution
Given information:
Equation of the given conic is
Concept Used:
For any 2nd degree conic equation
If
If
Calculation:
So
So new
Interpretation:
So, the equation represents an ellipse.
b.
To remove:
b.
Answer to Problem 56RE
The equation is
Explanation of Solution
Given information:
Equation of curve
To remove
For example:
to
You need to rotate coordinate axis through angle
Then replace
Then replace them in the 1st equation and get equation removed from
Calculation:
Now put in equation 3
Interpretation:
c.
To draw: The graph of the given curve.
c.
Explanation of Solution
Given information:
The equation
Interpretation :
The graph of the given curve has been obtained
Chapter 11 Solutions
Precalculus: Mathematics for Calculus - 6th Edition
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