The line passes through the points and

MATHEMATICS · Single correct · A Level · Mathematics · Coordinate geometry in the (x y) plane · Coordinate geometry in the (x y) plane

Problem

The line

L_1

passes through the points

(5,-1)

and

(-3,7)

. A line

L_2

is perpendicular to

L_1

and passes through the

x

-intercept of

L_1

. Which of the following is the equation of

L_2

in slope–intercept form? (a)

y = -x + 4

(b)

y = x + 4

(c)

y = x - 4

(d)

y = -x - 4