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The length of the chord of the parabola x2=4y having equation x=0 is :

(a)

2

(b)

3

(c)

6

(d)

8



Question ID - 56893 | SaraNextGen Top Answer

The length of the chord of the parabola x2=4y having equation x=0 is :

(a)

2

(b)

3

(c)

6

(d)

8

1 Answer
127 votes
Answer Key / Explanation : (c) -

x2=4y

x

solving together we get

x2 = 4

16=0

x1+x2=2  x1x2==−16

Similarly,

=4y

2y2+32−16y=4y

AB= 

=

=

==6

Option (c)

127 votes


127