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antiseptic1488 [7]
4 years ago
7

Help please I need it!!

Mathematics
1 answer:
Grace [21]4 years ago
4 0
First find the slope of A.

Slope=(y2-y1)/(x2-x1)=(4-0)/(0--7)=4/7

For a line to be perpendicular to line A, it must have a slope that is the negative reciprocal of the slope of A.  Mathematically:

m1*m2=-1 and in this case the perpendicular line will have a slope of:

4m/7=-1

4m=-7

m=-7/4 

So the slope of the line perpendicular to A is -7/4
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