Question

Decide weather the pair of lines are paralle, perpendicular, or neither.

5x+4y=3
4x+5y=1

I am lost here

Answer 1

for
Ax + By = C
the slope = - A/B

parallel lines have equal slopes
perpendicular lines have slopes that are opposite reciprocals of each other.

let me know what you concluded.

Answer 2

I would have to say paralle the way I did them but I am not to good at theis type of problem.

Answer 3

no
according to my formula the slope
for the 1st line = -5/4
for the 2nd line = -4/5

they are neither the same, nor are they opposite reciprocals.
So the answer is neither.

perhaps you are used to changing your equation to the form y = mx + b

1st --- > y = (-5/4)x + 3/4
2nd ---> y = (-4/5)x + 1/5

now compare the m values.
.... same conclusion.

Answer 4

Ok I understood that a little better. Thank you for your help.