Question

(iv) Find x, if distance between L(x, 7) and M(1, 15) is 10.
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Answer 1

Answer:7

Step-by-step explanation:

√(x-1)(x-1)+(7-15)(7-15)=10

(X-1)^2+64=100

X-1=6

X=7

Answer 2

Step-by-step explanation:

distance between points L(x,7)& M(1,15)

7SING DISTANCE FORMULA,

LM =√(X-1)2+(7-15)2

10=√(X-1)2+(-8)2

10=√(X-1)2+64

ON SQUARING BOTH SIDE

100=(X-1)2+64

100-64=(X-1)2

36=X2-2X+1

0=X2-2X+1-36

0=X2-2X-35

X2-2X-35=0

X2-7X+5X-35=0

X(X-7)+5(X-7)=0

X-7=0 OR X+5=0

X=7 OR X=-5