Asked by Jo
Use the slopes to determine if the line between the points (3, 5) and (-2, 7) is parallel, perpendicular or neither to a line that passes through the points (10,5) and (6, 15)
a) Parallel
b) Perpendicular
c) Neither
a) Parallel
b) Perpendicular
c) Neither
Answers
Answered by
Steve
so, can you not figure the slopes?
The first has slope (7-5)/(-2-3) = -2/5
you do the other, and then recall that
parallel lines have equal slopes
perpendicular lines have slopes whose product is -1
The first has slope (7-5)/(-2-3) = -2/5
you do the other, and then recall that
parallel lines have equal slopes
perpendicular lines have slopes whose product is -1
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