Question

Calculate for what value of y, the distance between the two points (2,y) and (10,-9) will be 10.​

Answer 1

Answer:

Solution :

Distance between the points = 10

According to question,

=> √(2 - 10)² + {y - (-9)}² = 10

=> √(-8)² + (y + 9)² = 10

=> 64 + (y + 9)² = (10)²

=> 64 + (y + 9)² = 100

=> (y + 9)² = 100-64

=> (y + 9)² = 36

=> y + 9 = √36

=> y + 9 = 6

=> y = 6-9

=> y = - 3

Hence, the value of y is - 3

Answer 2

Answer:

$the \: value \: of \: y \: is \: - 3$

Step-by-step explanation:

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