Find the values of for which the lines and are parallel. But my textbook says it's plus or minus 4, I only got +4 why? B.) Are there any values of that would make the two lines perpendicular? Explain. How would I be able to find out?
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Originally Posted by larry21 Find the values of for which the lines and are parallel. But my textbook says it's plus or minus 4, I only got +4 why? B.) Are there any values of that would make the two lines perpendicular? Explain. How would I be able to find out? A) The following is true The following is not true That's because (-4)(-4) = 16. B) For perpendicular lines, either 1) one line is horizontal and the other is vertical, or 2) the slopes are negative reciprocals of each other. So here we set You will get k = 0.
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