00:01
Which of the following is an equivalent function to f of x is equal to 5 times 3 to the power of 2x? so for a, we have f of x is equal to 25 times 3 to the power of x.
00:23
B is equal to 10 to the power of 3x.
00:29
Or excuse me, 10 times 3 to the power of x.
00:33
C is equal to 5 times 9 to the power of x.
00:40
D is equal to 5 times 6 to the power of x.
00:48
So we have to find the equivalent equation or the equivalent function.
00:54
To do that, let's look at an example.
00:57
Let's let x equal to 2.
01:02
So if we let x equal to 2, our function f of x becomes 5 times 3 to the 2 times 2.
01:16
Well, this 2 times 2 up here, here that translates into 4, so we would have 5 times 3 to the 4th.
01:28
Let's ignore this 5 for just one moment.
01:31
Let's pretend it's not there...