Question

How do u tell if a line is linear or nonlinear

Answer 1

If it's completely straight, then it is linear. Otherwise, it is nonlinear.

Answer 2

The easiest way I can think of for knowing the difference between linear and nonlinear is the exponent value on the variable x.
That is if you're referring to linear/non-linear equations.

Answer 3

Linear is straight. Non-linear is not

Answer 4

Yes. a line has the same rate of change. (unlike exponential functions)
Like a line is more like a function of a store selling ice cream, exponential increase is more like a population growth. An exponential decay is more like a velocity function of a ball, when it gets dropped from some height gaining less and less of the previous height each time.

Line is straight. Same slope.in a form of y=mx+b
(m or b, can be zero or negative 2, this results in a variety of possibilities of what an example of a line can be)

Answer 5

(when I said 2, in my parenthesis, I meant too, not a number 2.)