Question

What is the range of f(x) = 5x?

Answer 1

(fx) = 5^x

range is all real numbers greater than 0
so answer

A. All positive real numbers

Answer 2

Option: A is the correct answer.

A. All positive real numbers.

Explanation:

Domain of a function--

It is the set of all the possible x values for which a function is defined.

Range of a function--

It is the set of all the values which is attained by the function in it's specified domain.

We are given a exponential function f(x) by:

`f(x)=5^x`

We know that domain of such a function is all the real numbers.

But the function:

`f(x)=5^x>0`

for all the x.

Hence, the range is all positive real numbers.

Also, by the graph of the function this may be observed( since, the graph lie above the x-axis )