Question

2) Find y if the distance between D(y, 7) and E( 1, 15) is 10.
Solution:
By distance formula, d(D, E)
(Formula)
10 = V (1- y)² + 8?
On squaring both sides, 100 =
(1 - y)2 = 36
1-y=6 or 1-y=-6
y
or y
А​

Answer 1

Answer:

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