﻿ If x + y = k is normal to y2 = 12x, then k is : Kaysons Education

# If x + Y = K is Normal To y2 = 12x, Then k is

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## Question

### Solution

Correct option is

9

y = mx + c is a normal to y2 = 4ax if c = –2am – am2. Here

4a = 12    a = 3

y = – x + k     m = –1, c = k.

k = – 6(–1) – 3 (–1) = 6 + 3 = 9.

#### SIMILAR QUESTIONS

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