Answer:
Option B.
Step-by-step explanation:
We need to find the graph of a linear function .
The graph of a linear function is always a straight line because the rate of change of a linear function is constant.
First graph is a V-shaped curve, so it is the graph of an absolute function or modulus function.
Second graph is a straight line, so it is the graph of a linear function.
Third graph is a wave curve, so it represents the graph of a sine function or cosine function.
Forth graph is an increasing curve, which is increasing at decreasing rate, so it is the graph of a radical function.
Therefore, the correct option is B.
