Question

A chord is drawn through the focus of parabola y2=6x such that its distance from the vertex of this parabola is 52, then its slope can be

Answer 1

Answer:

Step-by-step explanation:

Let PL = x

Recall that tangents drawn from an external point to a circle are equal in length.

PL = PN = x

LP=12 – x = QM

NR = 8 – x = RM

Hence QM =12 – x, MR = 8 – x,

QM + MR = QR

12 – x + 8 – x = 10

20 – 2x = 10

–2x = –10

2x = 10

\ x = 5

PL = x = 5cm

QM= 12 – x = 12 – 5 = 7cm

RN = 8 – x = 8 – 5 = 3cm