PLEASE HELP THIS IS A GRADE

Identify which functions are exponential

1- y=(2.7x)squared
2- f(x)= 4 to the x
3- y= 0.5x+1
4- y= 125(2)to the n+8

can u help me if first then ill give the answer

Step-by-step explanation:

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.