SOLUTION: consider the line y=8x-9 What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?

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Question 1003874: consider the line y=8x-9
What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

compare the line to where is a slope and is y-intercept
so, the line has a slope
by definition, the slope of a line to this line will be same,
by definition, the slopes of lines are negative reciprocals to each other; so,

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