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Which equation represents a line that is perpendicular to the line represented by 2x-y=7?
5 months ago
Q:
Which equation represents a line that is perpendicular to the line represented by 2x-y=7?
Accepted Solution
A:
the correct question is
Which equation represents a line that is perpendicular to the line represented by 2x - y = 7?
A. y = -1/2x + 6
B. y = 1/2x + 6
C. y = -2x + 6
D. y = 2x + 6
we know that
if two lines are perpendicular
so
the slopes
m1*m2=-1
we have
2x-y=7-------> y=2x-7------------> slope m1=2
find slope m2
m2=-1/m1------> m2=-1/2
the slope m of the perpendicular line must to be -1/2
so
the answer is
y = -1/2x + 6