Question

What is the domain of the square root function graphed below?

On a coordinate plane, a curve opens down to the right in quadrant 1. The curve starts at (3, 1) and goes through (4, 2) and (7, 3).
x greater-than 1
x greater-than-or-equal-to 10
x greater-than 3
x greater-than-or-equal-to 3

Answer 1

x ≥ 3

The graph has its left endpoint at (3,1) and continues to the right, so all x-values from 3 to infinity are in the domain.