Question

Let f(x)=4^x and g(x)=x+3 the graph of (f o g)(x) is shown below. What is the range of (f o g)(x)?

Answer 1

A

Explanation:

Edge 2020

Answer 2

y>0

Explanation:

The range refers to all values of y for which x is defined.

We can see from the graph that the line y=0 is a horizontal asymptote to the curve and the graph increases from left to right without bounds.

Therefore the range is all positive y-values.

We can write all positive y-values as y>0

The first choice is correct