Which is a stretch of an exponential decay function? A:: f(x) = 1/5(1/5)^x
B:: f(x)1/5(5)^x
C:: fx) = 5 (1/5)^x
D:: f(x) = 5(5)^x

f(x) = 5(1/5)^x

Step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

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step-by-step explanation: