Precalculus · Problem 1.1.35

Relations and Functions — Stitz & Zeager

Mathematics — Precalculus · distance-formula-proof

Problem

Verify the Distance Formula 1.1 for the cases when: ((a)) The points are arranged vertically. (Hint: Use

P(a, y_0)

and

Q(a, y_1)

.) ((b)) The points are arranged horizontally. (Hint: Use

P(x_0, b)

and

Q(x_1, b)

.) ((c)) The points are actually the same point. (You shouldn't need a hint for this one.)