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Blizzard [7]
3 years ago
12

The graphs of two linear equations ax + by = c and bx - ay = c, where a, b, c are all not equal to zero.

Mathematics
1 answer:
marin [14]3 years ago
4 0
Let us find the slopes of the two lines

ax+by=c, slope m1 = -a/b

bx-ay=c, slope m2 = b/a

m1*m2 = (-a/b)(b/a) = -1

Therefore the two lines are perpendicular so the answer is D
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