Question

Which of the following is an exponential function?

y = 5x
y = 6x
y = log5x
y = x2

Answer 1

Answer: Third option is correct.

Explanation:

Since we have given that

`y=\log 5x`

As we know that logarithm is the opposite of exponential function:

So, it becomes,

`y=\log 5x\\\\e^y=5x\\\\x=(e^y)/(5)`

On the other hand,

y=5x, y=6x are the linear funtions.

And
`y=x^2` is the quadratic function.

Hence, Third option is correct.