Question

unit test
unit test complete
a piecewise function is represented by the graph below. what is the domain for the piece of the function represented by f(x) = x + 1?
graph of a piecewise function
options:
○ x < -1
○ -1 ≤ x ≤ 1
○ 1 ≤ x < 2
○ x > 1

Explanation:

Step1: Identify the line for f(x)=x+1

The function f(x)=x+1 is a line with slope 1. From the graph, the segment starting at x=1 (closed dot, included) and ending at x=2 (open dot, not included) matches this slope.

Step2: Determine the domain

The x-values for this segment are from 1 (inclusive) to 2 (exclusive), so the domain is 1 ≤ x < 2.

Answer:

1 ≤ x < 2