Lines B and C are perpendicular ⇒ answer C
Step-by-step explanation:
The product of the slopes of the perpendicular line is -1
The slopes of the parallel lines are equal
The slopes of two lines are
and 
1. If
×
= -1, then the two lines are perpendicular
2. If
=
, the the two lines are parallel
The equation of a line in slope-intercept form is y = m x + c, where m is
the slope of the line
Line A: y =
x + 2
The slope of the line is
= 
Line B: y =
x + 7
The slope of the line is
= 
Line C: y = 2 x + 4
The slope of the line is
= 2
Line D:
x + 
The slope of the line is
= 
∵
= 
∵
= 2
∵
× 2 = -1
∴ Line B and Line C are perpendicular because the product of their
slopes is -1
Lines B and C are perpendicular
Learn more:
You can learn more about slope in brainly.com/question/4152194
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