Algebra-1

To determine which line is NOT perpendicular to the graph of the line , follow these steps:

 

Find the slope of the given line :

Rewrite it in slope-intercept form :

Solve for y:

 

The slope (m) of this line is .

 

Determine the slopes of the given lines and check for perpendicularity:

Two lines are perpendicular if the product of their slopes is −1.

 

A. 

Rewrite in slope-intercept form:

Solve for y:

 

The slope is  .

Product of slopes . The lines are perpendicular.

 

B. :

Rewrite in slope-intercept form:

Solve for y:

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