SOLUTION: Determine wheather the graphs of the two equations are perpendicukar? y=6x-9 and 5y=9-x

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Question 386989: Determine wheather the graphs of the two equations are perpendicukar? y=6x-9 and 5y=9-x
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,         

the standard slope-intercept form for an equation of a line: y = mx + b  

where m is the slope and b the y-intercept.  

Determining if lines are perpendicular.  that is: slopes being negative reciprocals.

 y= 6x-9  Slope of this line = 6 (line prependicular, would have slope -(1/6)

 5y=9-x

  y = -x/5 + 9/5  Slope of this line is -(1/5) 

Lines are not perpendicular to one another on a graph

graph%28+300%2C+300%2C-10%2C10%2C-10%2C10%2C6x-9%2C-x%2F5+%2B+9%2F5%29+