# Determine if Parallel 2x=-1-y , 2y=6x+5 ,
Find the slope and y-intercept of the first equation.
Rewrite in slope-intercept form.
The slope-intercept form is , where is the slope and is the y-intercept.
Rewrite the equation as .
Add to both sides of the equation.
Multiply each term in by
Multiply each term in by .
Multiply .
Multiply by .
Multiply by .
Simplify each term.
Multiply by .
Multiply by .
Find the values of and using the form .
Find the slope and y-intercept of the second equation.
Rewrite in slope-intercept form.
The slope-intercept form is , where is the slope and is the y-intercept.
Divide each term by and simplify.
Divide each term in by .
Cancel the common factor of .
Cancel the common factor.
Divide by .
Cancel the common factor of and .
Factor out of .
Cancel the common factors.
Factor out of .
Cancel the common factor.
Rewrite the expression.
Divide by .
Find the values of and using the form .
Compare the slopes of the two equations.
Compare the two slopes in the decimal form. If the slopes are equal, then the lines are parallel. If the slopes are not equal, then the lines are not parallel.
The equations are not parallel because the slopes of the two lines are not equal.
Not Parallel
Determine if Parallel 2x=-1-y , 2y=6x+5
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