Question

9. Find the value of y for which the distance between the points A (3, -1) and
B (11, y) is 10 units,​

Answer 1

Answer:

y=5

Step-by-step explanation:

A(3,-1) B(11,y)

(AB)^2=(11-3)^2 + (y-(-1))

(AB)^2=(8×8) + (y+1)^2

(10 × 10)=64 + (y+1)^2

100=64 + (y+1)^2

100-64=(y+1)^2

36=(y+1)^2

Square root both sides

6=y+1

6-1=y

5=y

therefore, y=5

Answer 2

Answer:

i solved it for you bro

Step-by-step explanation:

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