Homework Help Forum: 9th grade algebra

Posted by geogria on Monday, October 5, 2009 at 11:42am.

decide whether the graphs of the two equations are parallel lines. a. y=3x+2, y=1/3x+4 b. 3y=15x+4, y=5x+1

• 9th grade algebra - bobpursley, Monday, October 5, 2009 at 11:48am

  do the lines in a) have the same slope? do the lines in b) have the same slope?

  
  

• 9th grade algebra - georgia, Monday, October 5, 2009 at 11:51am

  I suppose..

  
  

• 9th grade algebra - bobpursley, Monday, October 5, 2009 at 11:59am

  You suppose wrong. Put the sets of line in y=mx + b and then compare the slope m. Parallel lines have the same slope.

  
  

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