Answer:
The graph in the attached figure
Explanation:
we have

This is a exponential function
The domain is the interval ----> (-∞,∞)
All real numbers
The range is the interval ----> (3,∞)
All real numbers greater than 3
The y-intercept of the function is the value of the function when the value of x is equal to zero
For x=0




The y-intercept is the point (0,3.5)
using a graphing tool
The graph in the attached figure