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
| 42 | The absolute value of forty two
Hey there!
As you can see, they are lying on the same line.
When two angles are on the same straight line, they are adjacent.
Adjacent angles are supplmentary.
Adjacent angles= 180 degrees Supplementary= 180 degrees
They are choices "A" and "B".
I hope this helps!
~kaikers
The slope 1/2 y -intercept -2
