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What is the equation of the line perpendicular to –x + y = 7 and passing through (-1, -1)? -x + y = 2 -x – y = 2 x – y = 2 -x – y = 0 x + y = 0
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What is the equation of the line perpendicular to –x + y = 7 and passing through (-1, -1)? -x + y = 2 -x – y = 2 x – y = 2 -x – y = 0 x + y = 0
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May 19, 2017
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What is the equation of the line perpendicular to –x + y = 7 and passing through (-1, -1)?
-x + y = 2
-x – y = 2
x – y = 2
-x – y = 0
x + y = 0
Mathematics
high-school
Bon Ryu
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Bon Ryu
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y = x + 7
m1 = 1
m1 × m2 = - 1
1 × m2 = - 1
m2 = - 1
- 1 = - 1(-1) + c
- 1 = 1 + c
c = - 2
y = - x - 2
x + y = - 2
- x - y = 2
the answer is the 2nd one
Harishsingh Thakur
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May 25, 2017
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Harishsingh Thakur
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