Question

(iv) Find x, if distance between L(x7) and M1, 15) is 10.
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Answer 1

Answer:

x= 7,-5

Step-by-step explanation:

using distance between two points formula

±6$(LM)^2= (x-10)^2+(7-15)^2\\} \\10^2=  (x-10)^2+(-8)^2\\100=  (x-10)^2+64\\100+64= (x-10)^2\\36= (x-10)^2\\\sqrt{36} = (x-10)$

±6= (x-1)

±6 +1 = x

x= 7, x=-5