Question 1042912
Give the slope of each line and then determine whether the two lines are​ parallel, perpendicular, or neither parallel nor perpendicular.

5x+4y=8

20x+16y=0
<pre>5x + 4y = 8 ------- eq (i)
20x + 16y = 0 ----- eq (ii)
5x + 4y = 0 ------- Dividing eq (ii) by 4 ------ eq (iii)
Now look at eqs (iii) & (i). When you SUBTRACT one from the other, what do you get? This will determine your answer.
<b><u>OR</b></u>
Just find each slope and compare them!