If the distance between the points (P,4) and (2,1) is 5, Then The value of P is.
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Answer:
p=-2, 6
Step-by-step explanation:
the points are (p, 4) and(2,1)
therefore x1=p,x2=2 and y1=4 ,y2=1
d²=(x2-x1) ²+(y2-y1) ²
5²=(2-p) ²+(1-4) ²
25=4+p²-4p+9
25=13+p²-4p
p²-4p-12=0
p²-6p+2p-12=0
p(p-6) +2(p-6) =0
(p+2) (p-6) =0
therefore, p=-2, 6
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