Question

What's the difference between the rate of change of an exponential function and the rate of change of a straight line?

Answer 1

Graphical difference.

Answer 2

For example. Let's look at the exponential function x^2 when x > 0 and the linear function x when x > 0

Exponential Function f(x) = x^2
Linear Function g(x) = x

When x is 1, 2, 3, 4

f(1)= 1
g(1) =1

f(2) = 4
g(2) = 2

f(3) = 9
g(3) =3