Question

What is the length of the segment with endpoints (-3,4) and (5,4)?

Answer 1

Use phytagorean theorem to solve the problem.
l² = Δx² + Δy²

Δ means change. Δx means the change of x, and Δy means the change of y.
l² = (x₂ - x₁)² + (y₂ - y₁)²
l² = (5 - (-3))² + (4 - 4)²
l² = (5 + 3)² + 0
l² = 8²
l = 8

The length of the segment is 8

Answer 2

The answer is 8 units