Which lines are perpendicular?

Given:

Line A:

Line B:

Line C:

Line D:

To find:

Which lines are perpendicular

Solution:

General equation of a line:

y = mx + c

where m is the slope and c is the y-intercept.

Slope of line A =

Slope of line B =

Slope of line C = 2

Slope of line D =

Two lines are perpendicular if their slopes are negative reciprocal of one another.

Negative reciprocal of is 2.

Therefore line B and line C are perpendicular lines.

where are the images of the functions i can only see the question you typed.

step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).