What is my equation based on the table below, determine the exponential function being used. use x as your variable. then, evaluate this expression for x=7. input (x) output 0 1 1 5 2 25 3 125 4 625

This is pretty obviously



If it wasn't obvious we can find the common ratio r by dividing successive values:

5/1=5
25/5=5
125/25=5
625/125=5

That's the common ratio.  We multiply by the first term, but the first term is one, so that has no effect.

So you can award a Brainliest to the other person answering this, you need to solve this for x = 7

f(x) = 5 ^ x
f(7) = 5 ^ 7
f(7) = 78125