Question

The line PQ whose equation is x - y = 2 cuts the x-axis at
P, and Q is (4,2). The line PQ is rotated about P through
45° in the anticlockwise direction. The equation of the line
PQ in the new position is​

Answer 1

Correct option is C)

mpq=2-0/4-2=1

Now, PQ is rotated through 45 degree about P in anticlockwise direction

∴ slope of PQ becomes infinity.

∴ Equation of PQ in new position is x=2