Question

4. The distance between two points (2. -2) and (-1, x) is 5. Find onc value of x.
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Answer 1

Answer:

Step-by-step explanation:

d=sqrt(x2-x1)^2+(y2-y1)^2

5=sqrt(-1-2)^2+(x-(-2))

5=sqrt(-3)^2+(x+2)

5=sqrt(9)+(x+2)

5=sqrt(11+x)

taking sq. on both sides:

25=11+x

25-11=x

x=14