I need help on my homework, please help!!

The graph of the function y=(1/2)^x is shown at right.

a. Describe what happens to y as x gets larger and larger. For example, what is y when x=20? x=100? x=1000? x=n(a much larger number)?

b. Does the graph of y=(1/2)^x have an x‑intercept? Explain how you know.

c. Does y=(1/2)^x have a vertical asymptote? In other words, is there a vertical line that the graph above approaches? Why or why not?

(01.03 mc) which of the following is a step in simplifying the expression x multiplied by y to the power of 2 over x to the power of negative 3 multiplied by y to the power of 3, the whole to the power of negative 4. select one: a. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 7 multiplied by y to the power of negative 1. b. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of 12 multiplied by y to the power of negative 12. c. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of negative 3 multiplied by y to the power of 3. d. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 3 multiplied by y to the power of 3.