Question

find x if distance between points L(x,7) and M (1,15 )is 10

Answer 1

=>x=(-5) and 7.


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Answer 2

Answer:

Step-by-step explanation:

LETS L ( x,7) be (X1, y1) and M (1,15) be (x2,y2)

By distance formula,

d(L,M) = root (x2-x1)^2 + (y2-y1)^2

10 = root (1-x)^2 + (15-7)^2

10=root (1-x)^2 + (8)^2

Squaring both sides

100= (1-x)^2 +64

100-64=(1-x)^2

(1-x)^2=36

1-x=+- 6 (taking square root)

1-x=6 or 1-x= -6

X=1-6 or x=1+6

X= -5 or x =7

Hope you understand the sum