Answer: B) Nonlinear
Explanation:
Since, a Linear functions can be defined by the equation y = mx + b.
And, a Linear functions have a constant rate of change, ( that is, it must have a slope)
Therefore, Linear functions graph is a straight line, no curves allowed. So, if the graph is a straight line, it is the graph of a linear function.
Since, when we check the graph we found that it is curved and also a curve does not have any slope.
Therefore it can not be linear.
And, a function which is not linear is called Nonlinear function.
⇒ It is a graph of non linear function.