Find the value of 'k' if the distance between the points (4, k) and (1, 0) is 5.
Answer: C
Using the distance formula: \(5 = \sqrt{(4-1)^2 + (k-0)^2}\).
Square both sides: \(25 = (3)^2 + k^2\)
\(25 = 9 + k^2\)
\(k^2 = 16\)
\(k = \pm 4\).