The function f(x) is defined as f(x) = 3 x , x . On the same axes, sketch the graphs of: a. y =

The function f(x) is defined as f(x) = 3^x, x ∈ ℝ. On the same axes, sketch the graphs of:

a. y = f(x) 

b. y = 2f(x) 

c. y = f(x) − 4 

d. y = f(1/2 x)

Write down the coordinates of the point where each graph crosses the y-axis, and give the equations of any asymptotes.