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Question 15 O pts Each equation below represents a conic section. Write the name of the corresponding type of conic. Explain
a) ? 9 b) y? – 6y + 2 – 6 – 0 c).x2 + y2 100
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Answer #1

Solution-

(a)

Consider the equation

\frac{x^2}{25}-\frac{y^2}{9}=1

This is the equation of hyperbola because it contains both x2 and y2 terms and the minus (–) sign between two terms (x2/25 and y2/9) .

Hence, it is an equation representing hyperbola because of presence both x2 and y2 terms and the negative sign between them.

(b)

Consider the equation

y2+ 6y + x - 6 =0

This is the equation of parabola because it contains only one square term (y2) while other non-sqaure terms

Hence, it is an equation representing parabola because of presence only one square term y2.

(c)

Consider the equation

x2 + y2 = 100

This is the equation of circle because it contains both x2 and y2 terms with same cofficient (1)

Hence, it is an equation representing circle because of presence both x2 and y2 terms with same cofficient (1).

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