Question

a) Find the value of’ k ‘for which the distance between the two points A (3, -1) and

B (11, k) is 10 units.




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Answer 1

Step-by-step explanation:

(11-3)² + (k+1)² = 10²

8² + (k+1)² =100

(k+1)² = 36

(k+1) = 6 or (k+1) = -6

so k = 5, -7