Answer:
The graph in the attached figure
Step-by-step explanation:
we have

This is a exponential function of the form

where
a is the initial value
b is the base
Remember that
The initial value is the value of the function when the value of x is equal to zero (y-intercept of the function)
In this problem
The y-intercept is the point (0,3)
therefore
using a graphing tool
The initial step is plot the point (0,3)
see the attached figure