A line contains the points (3, -1) and (-1, 2). Another line graphed in the same coordinate plane contains the points (2,0) and (-2,3).
Based on the slope of these lines, are they parallel, perpendicular or neither?

Question

A line contains the points (3, -1) and (-1, 2). Another line graphed in the same coordinate plane contains the points (2,0) and (-2,3). 
Based on the slope of these lines, are they parallel, perpendicular or neither?

anonymous · Answer

they r parallel becoz they hav the same slope which is 3/-4

anonymous · Answer

<3

anonymous · Answer

Calculate the slope of the lines. If they are parallel, they will have the same slope. If they are perpendicular, the slopes will be inverses of each other (for example, -2 and 1/2 are perpendicular slopes). In other words, if you multiply the slopes together and get -1, they are perpendicular.