1. The graph is of exponential decay and the equation should be in the form: f(x) = a (k^-x) where a is the initial value and k is the multiplicative rate of change. Among the choices, there is no exact correct answer. Most probably, the answer is: <span>D. f(x)=20(53)x
2. The exact answer is: </span><span>C. f(x)=40(2.25)x Since the initial value is 40 and the multiplicative rate of change is 2.25
3. The answer is </span><span>D. f(t)=35,400(1.02)t Since the initial value is 35400 and the increase is 2%
4. Given this: </span><span>{(1,80),(2,240),(3,720),(4,2160)}
The function in sequence form is: p(t) = 80(3)^(t-1) </span>
4m^2+3m-1=0
a=4
b=3
c=-1
input
x= 
x= 
x= 
x= 
x= 
or 
x=-1 or 1/4
