NIMCET 2018 Question Paper with solutions

∴ Slope, m = −

1

(−2)

=

1

2

[ for a line Ax + By + C = 0 , slope = −

A

B

]
Since, required line is perpendicular to the given line,
∴ Slope of required line =

−1

m

= - 2
∴ Equation of line passing through (lt 1) and having slope -2 is given by
y - 1 = - 2 (x - 1) [equation of line is y - y1 = m (x - x1)]
⇒ y - 1 = - 2x + 2
⇒ y = - 2 x + 3