The two lines 3x-y-1=0 and x+3y-5=0 are:
a) perpendicular
b) parallel
c) confounded
d) collinear

The two lines 3x-y-1=0 and x+3y-5=0 are:
a) perpendicular
b) parallel
c) confounded
d) collinear

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you might wish to compare their slopes
re-writing each as \(y = ...\) would help you do that

i got x=3/5.
and y=4/5.
but now no idea how to continue

Is confounded points even a thing?

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