+0  
 
0
174
1
avatar+169 

The graph of the equation x + 2y + 3 = 0  is perpendicular to the graph of the equation ax + 2y + 3 = 0. What is the value of a?

 

I don't understand what to do, please help me.

 Jun 24, 2018
 #1
avatar+169 
+1

Never mind I got it. It's -4

 Jun 24, 2018

35 Online Users

avatar
avatar
avatar