Answer:
see the explanation and the attached figure
Step-by-step explanation:
Part 1) Linear
we have
[tex]y=x+3[/tex]
This is the equation of the line in slope intercept form
The slope is positive and equal to m=1
The y-intercept is b=3
As the value of x increases the value of y increases too
As the value of x decreases the value of y decreases too
therefore
The graph in the attached figure
Part 2) Quadratic function
we have
[tex]y=3x^2[/tex]
This is a vertical parabola open upward with the vertex at origin
As the value of x increases the value of y increases too
As the value of x decreases the value of y increases
therefore
The graph in the attached figure
Part 3) Exponential function
we have
[tex]y=3^x[/tex]
This is a exponential growth function
As the value of x increases the value of y increases too
As the value of x decreases the value of y decreases too
The initial value or y-intercept is 3
therefore
The graph in the attached figure
