Answer:
A linear function is a function with standard form y = mx + b, where m is the slope and b is the y-intercept, and whose graph looks like a straight line. There are other functions whose graph is not a straight line. These functions are known as nonlinear functions and they come in many different forms.
If it is a straight line it is linear and if it is not a straight line ot is non linear!
Hope this works!
