3. In the function y - 4(3") - 1. the graph is asymptotic to
a. y=1
b. y-axis
c. y=-1
d. x-axis
4. Which function is increasing?
a. y=-2*
b. y=2(1/2*)
c. y=3(4*)
d. y=-4(2*)
5. What is the y-intercept of the function y = 42") - 27?
a. 2
b. -2
c. 4
d. 1​