Classify each function as linear quadratic or exponential Fx

Classify each function as linear, quadratic, or exponential. F(x) = 2x^2 + x - 3 g(x) = (text not clear) f(x) = 3x + 1 The total revenues of the securities industry since 1980 are approximated by the function f(t) = 21.5e^13t where t = 0 corresponds to 1980 and f(t) is in billions of dollars. Find the revenues in the following years. 1987 1994 2000

Solution

3)
f(x) = 2x^2+x-3
since function is a polynomial of degree 2
It is quadratic

your picture is not clear
but functions will be in this order:

quadratic
exponential
exponential
linear

only 1 question at a time