﻿ The focal chord of y2 = 16x is tangent to (x – 6)2 + y2 = 2, then the possible values of the slope of this chord, are : Kaysons Education

# The Focal Chord Of y2 = 16x is Tangent To (x – 6)2 + y2 = 2, Then The Possible Values Of The Slope Of This Chord, Are

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## Question

### Solution

Correct option is

1, –1

Focus (a, 0) is (4, 0). Any focal chord is

y – 0 = m(x – 4)

or       mx – y – 4m = 0.

Apply the condition of tangency p = t with circle (6, 0), .

or     2m2 = m2 + 1  m2 = 1

.

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