Question

a part of quadratic function f is graphed on the grid.
what is the domain of the part of the function shown?
a all real numbers greater than or equal to

Explanation:

Step1: Identify left domain boundary

The graph has a closed dot at $x=-1$, so $x$ starts at $-1$.

Step2: Identify right domain boundary

The graph extends infinitely right (arrow), so $x$ goes to $+\infty$.

Step3: Define the domain

Combine boundaries: all real $x$ where $x\geq -1$.

Answer:

All real numbers greater than or equal to $-1$